diff --git a/subjects/atm-management-system/audit/README.md b/subjects/atm-management-system/audit/README.md
index db5ebf7ee..caf2ae7b5 100644
--- a/subjects/atm-management-system/audit/README.md
+++ b/subjects/atm-management-system/audit/README.md
@@ -1,16 +1,16 @@
 #### Functional
 
-##### Open the application and register a new user with the name `"Alice"` and the password `"q1w2e3r4t5y6"`
+##### Open the application and register a new user with the name `"Alice"` and the password `"q1w2e3r4t5y6"`.
 
-###### Is this user saved in the file `"./data/users.txt"`, and if so are all credentials correct (name and password)?
+###### Is this user saved in the file `"./data/users.txt"`, and if so, are all credentials correct (name and password)?
 
-##### Open the application and register again the user `"Alice"`.
+##### Open the application and re-register the user `"Alice"`.
 
-###### Did it displayed an error message saying that this user already exists?
+###### Did it display an error message stating that this user already exist?
 
 ##### Open the file `"./data/users.txt"`.
 
-###### Are all the user names unique? (ex: no repetition on the name Alice)
+###### Are all the user's names unique? (ex: no repetition on the name Alice)
 
 ##### Try and login as `"Alice"`.
 
@@ -18,21 +18,21 @@
 
 ##### Try to create two accounts using the user Alice, then select the option `"Update information of account"` and select an account number that does not exist for Alice.
 
-###### Did the application displayed some kind of error message saying that this account does not exist?
+###### Did the application displayed some kind of error message stating that this account does not exist?
 
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice.
+##### Resorting to the user Alice, try and select the option `"Update information of account"` and select one of the accounts you created for Alice.
 
 ###### Did the the application prompt a choice of updating the **phone number** or the **country**?
 
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the phone number of that account.
+##### Resorting to the user Alice, try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the phone number of that account.
 
 ###### Was the phone number of that account updated in the application and the file `"records.txt"`?
 
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the country of that account.
+##### Resorting to the user Alice, try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the country of that account.
 
 ###### Was the country of that account updated in the application and the file `"records.txt"`?
 
-##### Resorting to the user Alice try to create a new account with: date `"10/10/2012"` account number `"834213"`, country `"UK"`, phone number `"291231392"`, deposit amount  $`"1001.20"`, type of account `"saving"`. Then select `"Check accounts"` choose the account you just created.
+##### Resorting to the user Alice, try to create a new account with: date `"10/10/2012"` account number `"834213"`, country `"UK"`, phone number `"291231392"`, deposit amount  $`"1001.20"`, type of account `"saving"`. Then select `"Check accounts"` choose the account you just created.
 
 ###### Did the application displayed the account information and the gain of $5.84 of interest on day 10 of every moth?
 
diff --git a/subjects/atm_management_system/README.md b/subjects/atm_management_system/README.md
deleted file mode 100644
index ac65c0a88..000000000
--- a/subjects/atm_management_system/README.md
+++ /dev/null
@@ -1,133 +0,0 @@
-## ATM
-
-### Objective
-
-The objective for this project is to show that you have learned to program and you are able to adapt to new languages.
-
-The programming language you are about to use is [C](https://en.wikipedia.org/wiki/C_%28programming_language%29). It will not be asked to create
-a project from scratch, but **to add features or fix the code of a given application**.
-
-### Instructions
-
-You will be provided with an ATM management system where users can do the following actions:
-
-- Login/Register
-- Create a new account
-- Update information of existing accounts
-- Check the details of existing accounts
-- Check list of owned accounts
-- Make transactions
-- Remove existing accounts
-
-The application provided will just handle the **login**, **creation of new accounts** and **check list of owned accounts**. The rest of the features must
-be implemented by you.
-
-### File System
-
-It will be provided a folder that you can find [here](https://downgit.github.io/#/home?url=https://github.com/01-edu/public/tree/master/subjects/atm-management-system/atm-system/), this folder will have the following fs:
-
-```console
-.
-|
-├── data
-│   ├── records.txt
-│   └── users.txt
-├── Makefile
-├── README.md
-└── src
-    ├── auth.c
-    ├── header.h
-    ├── main.c
-    └── system.c
-```
-
-The `data` folder presented above will contain information about the users and their accounts:
-
-- `users.txt` will be the a file that stores all information about each user
-- `records.txt` will be the a file that stores all information relevant to the accounts for each user
-
-The format for the content saved in the file will be displayed like this :
-
-`users.txt` (name, password):
-
-```console
-Alice 1234password
-Michel password1234
-....
-```
-
-`records.txt` (user name, account id, date of creation, country, phone nº, type of account) :
-
-```console
-Alice 0 10/02/2020 german 986134231 11090830.00 current
-Michel 2 10/10/2021 portugal 914134431 1920.42 saving
-Alice 1 10/10/2000 finland 986134231 1234.21 saving
-....
-```
-
-### Features
-
-The following features must be done by you.
-
-1. **Registration**, you must be able to register new users, it cannot exist users with the same name (names must be unique). They must be saved into the right file
-
-2. **Update information of existing account**, users must be able to update their country or phone number
-
-   2.1. You must ask users to input the account id they want to change, followed by a prompt asking which field they want to also change (the only fields that are permitted to update is the phone number and the country).
-
-   2.2. Whenever users update an account, it must be saved into the corresponding file.
-
-3. **Check the details of existing accounts**, users must be able to check just one account at a time.
-
-   3.1. For this it must be asked to input the account id they want to see
-
-   3.2. If the account is either saving, fixed01, fixed02 and fixed03 the system will display
-   the information of that account and the interest you will acquire depending on the account:
-
-   - saving: rate interest 0.07%
-   - fixed01(1 year account): rate interest 0.04%
-   - fixed02(2 year account): rate interest 0.05%
-   - fixed03(3 year account): rate interest 0.08%
-   - If the account is current you must display `You will not get interests because the account is of type current`
-
-4. **Make transaction**, users must be able to create transactions, withdrawing or depositing money to a certain account. All transactions
-   must be updated and saved into the corresponding file
-
-5. **Remove existing account**, users must be able to delete their own account, same must happened here, updates must be saved into the corresponding file.
-
-6. **Transfer owner**, users can transfer their account to another user, by:
-
-   6.1. Identifying the account and the user they want to transfer the ownership to
-
-   6.2. Saving the information in the corresponding file
-
-### Bonus
-
-As bonus you can add a verification to the field **Transfer owner**. Every time a user transfers ownership of an account the other user who received the account
-can be alerted that it received and account from someone instantly.
-Example if you have two terminals opened logged in two different users, and one send the account to the other user,
-the user who received the account should be instantly notified
-One of the ways of doing this is by using pipes and child processes (communication between process)
-
-You can also do more bonus features or update the terminal interface:
-
-- Better terminal interface
-- Encryption of passwords
-- Adding own Makefile
-
-### Example
-
-You can find an example of the final application [here](https://www.youtube.com/watch?v=1LjwbIFt5Qo). Do not forget that you are free to
-implement whatever kind of interface you desire. It just needs to obey the instructions given above so it can pass the audit.
-
-This project will help you learn about:
-
-- [C](https://en.wikipedia.org/wiki/C_%28programming_language%29) language
-  - Language Fundamentals
-- Data manipulation
-  - File manipulation
-  - Data structures
-- Makefile
-- Terminal UI
-- Memory management
-- Pipes and child processes
diff --git a/subjects/atm_management_system/atm_system/Makefile b/subjects/atm_management_system/atm_system/Makefile
deleted file mode 100644
index 62befd2c6..000000000
--- a/subjects/atm_management_system/atm_system/Makefile
+++ /dev/null
@@ -1,16 +0,0 @@
-objects = src/main.o src/system.o src/auth.o
-
-atm : $(objects)
-	cc -o atm $(objects)
-
-main.o : src/header.h
-kbd.o : src/header.h
-command.o : src/header.h
-display.o : src/header.h
-insert.o : src/header.h
-search.o : src/header.h
-files.o : src/header.h
-utils.o : src/header.h
-
-clean :
-	rm -f $(objects)
diff --git a/subjects/atm_management_system/atm_system/data/records.txt b/subjects/atm_management_system/atm_system/data/records.txt
deleted file mode 100644
index b9d75f71c..000000000
--- a/subjects/atm_management_system/atm_system/data/records.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-Alice 0 10/10/2012 Africa 291321234 22432.52 saving
-
-Michel 2 2/5/2001 Portugal 123543455 10023.230000 fixed01
-
-Michel 123 10/10/2020 UK 1234123 12345.30 saving
-
diff --git a/subjects/atm_management_system/atm_system/data/users.txt b/subjects/atm_management_system/atm_system/data/users.txt
deleted file mode 100644
index 00694cf8b..000000000
--- a/subjects/atm_management_system/atm_system/data/users.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Alice q1w2e3r4t5y6
-Michel q1w2e3r4t5y6
diff --git a/subjects/atm_management_system/atm_system/src/auth.c b/subjects/atm_management_system/atm_system/src/auth.c
deleted file mode 100644
index c3e61b088..000000000
--- a/subjects/atm_management_system/atm_system/src/auth.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include <termios.h>
-#include "header.h"
-
-char *USERS = "./data/users.txt";
-
-void loginMenu(char a[50], char pass[50])
-{
-    struct termios oflags, nflags;
-
-    system("clear");
-    printf("\n\n\n\t\t\t\t   Bank Management System\n\t\t\t\t\t User Login:");
-    scanf("%s", a);
-
-    // disabling echo
-    tcgetattr(fileno(stdin), &oflags);
-    nflags = oflags;
-    nflags.c_lflag &= ~ECHO;
-    nflags.c_lflag |= ECHONL;
-
-    if (tcsetattr(fileno(stdin), TCSANOW, &nflags) != 0)
-    {
-        perror("tcsetattr");
-        return exit(1);
-    }
-    printf("\n\n\n\n\n\t\t\t\tEnter the password to login:");
-    scanf("%s", pass);
-
-    // restore terminal
-    if (tcsetattr(fileno(stdin), TCSANOW, &oflags) != 0)
-    {
-        perror("tcsetattr");
-        return exit(1);
-    }
-};
-
-const char *getPassword(struct User u)
-{
-    FILE *fp;
-    struct User userChecker;
-
-    if ((fp = fopen("./data/users.txt", "r")) == NULL)
-    {
-        printf("Error! opening file");
-        exit(1);
-    }
-
-    while (fscanf(fp, "%s %s", userChecker.name, userChecker.password) != EOF)
-    {
-        if (strcmp(userChecker.name, u.name) == 0)
-        {
-            fclose(fp);
-            char *buff = userChecker.password;
-            return buff;
-        }
-    }
-
-    fclose(fp);
-    return "no user found";
-}
\ No newline at end of file
diff --git a/subjects/atm_management_system/atm_system/src/header.h b/subjects/atm_management_system/atm_system/src/header.h
deleted file mode 100644
index 61d7971a3..000000000
--- a/subjects/atm_management_system/atm_system/src/header.h
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-struct Date
-{
-    int month, day, year;
-};
-
-// all fields for each record of an account
-struct Record
-{
-    char name[100];
-    char country[100];
-    int phone;
-    char accountType[10];
-    int accountNbr;
-    double amount;
-    struct Date deposit;
-    struct Date withdraw;
-};
-
-struct User
-{
-    char name[50];
-    char password[50];
-};
-
-// authentication functions
-void loginMenu(char a[50], char pass[50]);
-void registerMenu(char a[50], char pass[50]);
-const char *getPassword(struct User u);
-
-// system function
-void createNewAcc(struct User u);
-void mainMenu(struct User u);
-void checkAllAccounts(struct User u);
diff --git a/subjects/atm_management_system/atm_system/src/main.c b/subjects/atm_management_system/atm_system/src/main.c
deleted file mode 100644
index 9829a876c..000000000
--- a/subjects/atm_management_system/atm_system/src/main.c
+++ /dev/null
@@ -1,104 +0,0 @@
-#include "header.h"
-
-void mainMenu(struct User u)
-{
-    int option;
-    system("clear");
-    printf("\n\n\t\t======= ATM =======\n\n");
-    printf("\n\t\t-->> Feel free to choose one of the options below <<--\n");
-    printf("\n\t\t[1]- Create a new account\n");
-    printf("\n\t\t[2]- Update information of account\n");
-    printf("\n\t\t[3]- Check accounts\n");
-    printf("\n\t\t[4]- Check list of owned account\n");
-    printf("\n\t\t[5]- Make Transaction\n");
-    printf("\n\t\t[6]- Remove existing account\n");
-    printf("\n\t\t[7]- Transfer ownership\n");
-    printf("\n\t\t[8]- Exit\n");
-    scanf("%d", &option);
-
-    switch (option)
-    {
-    case 1:
-        createNewAcc(u);
-        break;
-    case 2:
-        // student TODO : add your **Update information of existing account** function
-        // here
-        break;
-    case 3:
-        // student TODO : add your **Check the details of existing accounts** function
-        // here
-        break;
-    case 4:
-        checkAllAccounts(u);
-        break;
-    case 5:
-        // student TODO : add your **Make transaction** function
-        // here
-        break;
-    case 6:
-        // student TODO : add your **Remove existing account** function
-        // here
-        break;
-    case 7:
-        // student TODO : add your **Transfer owner** function
-        // here
-        break;
-    case 8:
-        exit(1);
-        break;
-    default:
-        printf("Invalid operation!\n");
-    }
-};
-
-void initMenu(struct User *u)
-{
-    int r = 0;
-    int option;
-    system("clear");
-    printf("\n\n\t\t======= ATM =======\n");
-    printf("\n\t\t-->> Feel free to login / register :\n");
-    printf("\n\t\t[1]- login\n");
-    printf("\n\t\t[2]- register\n");
-    printf("\n\t\t[3]- exit\n");
-    while (!r)
-    {
-        scanf("%d", &option);
-        switch (option)
-        {
-        case 1:
-            loginMenu(u->name, u->password);
-            if (strcmp(u->password, getPassword(*u)) == 0)
-            {
-                printf("\n\nPassword Match!");
-            }
-            else
-            {
-                printf("\nWrong password!! or User Name\n");
-                exit(1);
-            }
-            r = 1;
-            break;
-        case 2:
-            // student TODO : add your **Registration** function
-            // here
-            r = 1;
-            break;
-        case 3:
-            exit(1);
-            break;
-        default:
-            printf("Insert a valid operation!\n");
-        }
-    }
-};
-
-int main()
-{
-    struct User u;
-    
-    initMenu(&u);
-    mainMenu(u);
-    return 0;
-}
diff --git a/subjects/atm_management_system/atm_system/src/system.c b/subjects/atm_management_system/atm_system/src/system.c
deleted file mode 100644
index 1a5f03c92..000000000
--- a/subjects/atm_management_system/atm_system/src/system.c
+++ /dev/null
@@ -1,161 +0,0 @@
-#include "header.h"
-
-const char *RECORDS = "./data/records.txt";
-
-int getAccountFromFile(FILE *ptr, char name[50], struct Record *r)
-{
-    return fscanf(ptr, "%s %d %d/%d/%d %s %d %lf %s",
-                  name,
-                  &r->accountNbr,
-                  &r->deposit.month,
-                  &r->deposit.day,
-                  &r->deposit.year,
-                  r->country,
-                  &r->phone,
-                  &r->amount,
-                  r->accountType) != EOF;
-}
-
-void saveAccountToFile(FILE *ptr, char name[50], struct Record r)
-{
-    fprintf(ptr, "%s %d %d/%d/%d %s %d %.2lf %s\n\n",
-            name,
-            r.accountNbr,
-            r.deposit.month,
-            r.deposit.day,
-            r.deposit.year,
-            r.country,
-            r.phone,
-            r.amount,
-            r.accountType);
-}
-
-void stayOrReturn(int notGood, void f(struct User u), struct User u)
-{
-    int option;
-    if (notGood == 0)
-    {
-        system("clear");
-        printf("\n✖ Record not found!!\n");
-    invalid:
-        printf("\nEnter 0 to try again, 1 to return to main menu and 2 to exit:");
-        scanf("%d", &option);
-        if (option == 0)
-            f(u);
-        else if (option == 1)
-            mainMenu(u);
-        else if (option == 2)
-            exit(0);
-        else
-        {
-            printf("Insert a valid operation!\n");
-            goto invalid;
-        }
-    }
-    else
-    {
-        printf("\nEnter 1 to go to the main menu and 0 to exit:");
-        scanf("%d", &option);
-    }
-    if (option == 1)
-    {
-        system("clear");
-        mainMenu(u);
-    }
-    else
-    {
-        system("clear");
-        exit(1);
-    }
-}
-
-void success(struct User u)
-{
-    int option;
-    printf("\n✔ Success!\n\n");
-invalid:
-    printf("Enter 1 to go to the main menu and 0 to exit!\n");
-    scanf("%d", &option);
-    system("clear");
-    if (option == 1)
-    {
-        mainMenu(u);
-    }
-    else if (option == 0)
-    {
-        exit(1);
-    }
-    else
-    {
-        printf("Insert a valid operation!\n");
-        goto invalid;
-    }
-}
-
-void createNewAcc(struct User u)
-{
-    struct Record r;
-    struct Record cr;
-    char userName[50];
-    FILE *pf = fopen(RECORDS, "a+");
-
-noAccount:
-    system("clear");
-    printf("\t\t\t===== New record =====\n");
-
-    printf("\nEnter today's date(mm/dd/yyyy):");
-    scanf("%d/%d/%d", &r.deposit.month, &r.deposit.day, &r.deposit.year);
-    printf("\nEnter the account number:");
-    scanf("%d", &r.accountNbr);
-
-    while (getAccountFromFile(pf, userName, &cr))
-    {
-        if (strcmp(userName, u.name) == 0 && cr.accountNbr == r.accountNbr)
-        {
-            printf("✖ This Account already exists for this user\n\n");
-            goto noAccount;
-        }
-    }
-    printf("\nEnter the country:");
-    scanf("%s", r.country);
-    printf("\nEnter the phone number:");
-    scanf("%d", &r.phone);
-    printf("\nEnter amount to deposit: $");
-    scanf("%lf", &r.amount);
-    printf("\nChoose the type of account:\n\t-> saving\n\t-> current\n\t-> fixed01(for 1 year)\n\t-> fixed02(for 2 years)\n\t-> fixed03(for 3 years)\n\n\tEnter your choice:");
-    scanf("%s", r.accountType);
-
-    saveAccountToFile(pf, u.name, r);
-
-    fclose(pf);
-    success(u);
-}
-
-void checkAllAccounts(struct User u)
-{
-    char userName[100];
-    struct Record r;
-
-    FILE *pf = fopen(RECORDS, "r");
-
-    system("clear");
-    printf("\t\t====== All accounts from user, %s =====\n\n", u.name);
-    while (getAccountFromFile(pf, userName, &r))
-    {
-        if (strcmp(userName, u.name) == 0)
-        {
-            printf("_____________________\n");
-            printf("\nAccount number:%d\nDeposit Date:%d/%d/%d \ncountry:%s \nPhone number:%d \nAmount deposited: $%.2f \nType Of Account:%s\n",
-                   r.accountNbr,
-                   r.deposit.day,
-                   r.deposit.month,
-                   r.deposit.year,
-                   r.country,
-                   r.phone,
-                   r.amount,
-                   r.accountType);
-        }
-    }
-    fclose(pf);
-    success(u);
-}
diff --git a/subjects/atm_management_system/audit/README.md b/subjects/atm_management_system/audit/README.md
deleted file mode 100644
index db5ebf7ee..000000000
--- a/subjects/atm_management_system/audit/README.md
+++ /dev/null
@@ -1,95 +0,0 @@
-#### Functional
-
-##### Open the application and register a new user with the name `"Alice"` and the password `"q1w2e3r4t5y6"`
-
-###### Is this user saved in the file `"./data/users.txt"`, and if so are all credentials correct (name and password)?
-
-##### Open the application and register again the user `"Alice"`.
-
-###### Did it displayed an error message saying that this user already exists?
-
-##### Open the file `"./data/users.txt"`.
-
-###### Are all the user names unique? (ex: no repetition on the name Alice)
-
-##### Try and login as `"Alice"`.
-
-###### Was Alice able to enter the main menu?
-
-##### Try to create two accounts using the user Alice, then select the option `"Update information of account"` and select an account number that does not exist for Alice.
-
-###### Did the application displayed some kind of error message saying that this account does not exist?
-
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice.
-
-###### Did the the application prompt a choice of updating the **phone number** or the **country**?
-
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the phone number of that account.
-
-###### Was the phone number of that account updated in the application and the file `"records.txt"`?
-
-##### Resorting to the user Alice try and select the option `"Update information of account"` and select one of the accounts you created for Alice. Then update the country of that account.
-
-###### Was the country of that account updated in the application and the file `"records.txt"`?
-
-##### Resorting to the user Alice try to create a new account with: date `"10/10/2012"` account number `"834213"`, country `"UK"`, phone number `"291231392"`, deposit amount  $`"1001.20"`, type of account `"saving"`. Then select `"Check accounts"` choose the account you just created.
-
-###### Did the application displayed the account information and the gain of $5.84 of interest on day 10 of every moth?
-
-##### Resorting to the user Alice create again an account but with account number "320421" and type of account "fixed01" with the rest of the information as in the last account . Then select `"Check accounts"` and choose the account you just created.
-
-###### Did the application displayed the account information and the gain of $40.05 of interest on 10/10/2013?
-
-##### Resorting to the user Alice create again an account but with account number `"3214"` and type of account `"fixed02"` with the rest of the information as in the last account. Then select `"Check accounts"` and choose the account you just created.
-
-###### Did the application displayed the account information and the gain of $100.12 of interest on 10/10/2014?
-
-##### Resorting to the user Alice create again an account but with account number `"3212"` and type of account `"fixed03"` with the rest of the information as in the last account. Then select `"Check accounts"` and choose the account you just created.
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-###### Did the application displayed the account information and the gain of $240.29 of interest on 10/10/2015?
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-##### Resorting to the user Alice select the option `"Make transaction"`. Then choose the account with the id `"3212"`
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-###### Are you able to choose between withdrawing or depositing?
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-##### Resorting to the user Alice select the option `"Make transaction"`, choose the account with the id `"3212"`. Then try to withdraw money.
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-###### Are you able to withdraw money?
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-###### And if so, was the withdraw updated in the file `"records.txt"`?
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-###### Is it not possible to withdraw an amount superior to your available balance?
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-##### Try to deposit money into the account `"3212"`.
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-###### Were you able to deposit money into this account?
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-###### And if so did it update the file `"records.txt"`?
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-##### Resorting to the user Alice try to select the option `"Remove existing account"` and remove the accounts `"834213"`, `"320421"` and `"3214"`.
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-###### Can you confirm that those account were deleted, both in the application and file `"records.txt"`?
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-##### Resorting to the user Alice select the option `"Remove existing account"` and try to remove and nonexisting account.
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-###### Did the application prompt some type of error saying that the account does not exists?
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-##### Create another user named `"Michel"`. Then by using Alice select the option `"transfer owner"` and try to transfer ownership of the account `"3212"` to Michel.
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-###### Were you able to transfer the ownership of this account to Michel? And if so did it update both application and file `"records.txt"`?
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-#### Bonus
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-##### Open two terminals and login with two different users. Then transfer ownership of an account to the other user.
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-###### +Was the user whom received the account notified instantly?
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-###### +Did the student update the terminal interface?
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-###### +Is the password saved in the file `"users.txt"` encrypted?
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-###### +Did the student make their own Makefile?
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-###### +Did the student add more features to the project?
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-###### +Did the student optimise the code already given?
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