What is ctrlat20.exe and how to fix ctrlat20.exe ?

What is ctrlat20.exe file ?


In some case ctrlat20.exe can harm your computer. Therefore, please read below to decide for yourself whether the CtrlAT20.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Follow steps bellow to try fix the problem with ctrlat20.exe

1. Use cleanmgr

To run the command cleanmgr :
Press Windows key + Q.
Enter cmd in search box , followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command cleanmgr and press Enter.

2. Use sfc /scannow

To run the command sfc /scannow :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command sfc /scannow and press Enter.

3. uninstalling programs :

To uninstall unnecessary programs :
Open the Start menu (Press Windows key + X) .
Click the first menu item Programs and Features.
Search unnecessary programs in the list of installed programs, .
Click the software you want to uninstall.

4. using msconfig

To run the command msconfig :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command msconfig and press Enter.

5. Automatic Update

To run the command wuauclt /ShowWindowsUpdate:
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command wuauclt /ShowWindowsUpdate and press Enter.

6. Use resmon command

To run the command resmon :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command resmon and press Enter.

7. use DISM.exe

To run the command DISM.exe /Online /Cleanup-image /Restorehealth :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.


ctrlat20.exe descriptions


CtrlAT20.exe is not essential for the Windows OS and causes relatively few problems. CtrlAT20.exe is located in a subfolder of the user’s profile folder or sometimes in the Windows folder for temporary files —for instance C:UsersUSERNAMEConfiguraci�n localTemp.;The file size on Windows 10/8/7/XP is 192,512 bytes.;There is no information about the author of the file. The process starts upon Windows startup (see Registry key: MACHINERun).;CtrlAT20.exe is not a Windows system file. The program has no visible window.;CtrlAT20.exe is able to record keyboard and mouse inputs and monitor applications.;Therefore the technical security rating is 47% dangerous.