What is atapi.sys file ?

Atapi.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc.;The free file information forum can help you determine if atapi.sys is a Windows system file or if it belongs to an application that you can trust.

Follow steps bellow to try fix the problem with atapi.sys

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.

atapi.sys descriptions

Atapi.sys is an important part of Windows, but often causes problems. Atapi.sys is located in the C:WindowsSystem32drivers folder.;Known file sizes on Windows 10/8/7/XP are 96,512 bytes (50% of all occurrences), 21,584 bytes, 95,360 bytes, 19,944 bytes or 22,944 bytes.;The driver can be started or stopped from Services in the Control Panel or by other programs.;The program has no visible window. The service has no detailed description. It is a trustworthy file from Microsoft.;Therefore the technical security rating is 11% dangerous, but you should also take into account the user reviews.;Uninstalling this variant;You could also consult Microsoft ‘s Customer Service or uninstall Microsoft Windows from your computer using the Control Panel applet Uninstall a Program.