Msisadrv - Windows 8 Service
ISA Driver by Microsoft Corporation.
This service also exists in Windows 10, 11, 7 and Vista.
Startup Type
| Windows 8 edition | Windows 8 | Windows 8.1 | Windows 8.1 Update 1 |
|---|---|---|---|
| Core | Boot | Boot | Boot |
| Pro | Boot | Boot | Boot |
| Enterprise | Boot | Boot | Boot |
Default Properties
| Display name: | Msisadrv |
| Service name: | msisadrv |
| Type: | kernel |
| Path: | %WinDir%\System32\drivers\msisadrv.sys |
| Error control: | critical |
| Group: | Boot Bus Extender |
Default Behavior
The Msisadrv service is a kernel mode driver. If Msisadrv fails to load or initialize, the error is logged and the computer attempts to restart, using the Last Known Good configuration. If the Last Known Good configuration fails, Windows 8 startup also fails, and the boot process halts with a Stop error. If you disable this service, Windows 8 will fail to start. Do NOT change this service startup configuration if your computer is working.
Restore Default Startup Type of Msisadrv
Automated Restore
1. Select your Windows 8 release and edition, and then click on the Download button below.
2. Save the RestoreMsisadrvWindows8.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 msisadrv.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.