Application Compatibility Cache - Windows 8 Service
Cache Compatibility Data and Attributes for Individual PE File.
This service also exists in Windows 10 and 11.
Startup Type
| Windows 8 edition | Windows 8 | Windows 8.1 | Windows 8.1 Update 1 |
|---|---|---|---|
| Core | not exists | System | System |
| Pro | not exists | System | System |
| Enterprise | not exists | System | System |
Default Properties
| Display name: | Application Compatibility Cache |
| Service name: | ahcache |
| Type: | kernel |
| Path: | %WinDir%\system32\DRIVERS\ahcache.sys |
| Error control: | normal |
Default Behavior
The Application Compatibility Cache service is a kernel mode driver. If Application Compatibility Cache fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the ahcache service has failed to start.
Restore Default Startup Type of Application Compatibility Cache
Automated Restore
1. Select your Windows 8 release and edition, and then click on the Download button below.
2. Save the RestoreApplicationCompatibilityCacheWindows8.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer.
Note. Make sure that the ahcache.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 8 installation media.