NVIDIA nForce AGP Bus Filter (nv_agp) Service Defaults in Windows 8

NForce NT AGP Filter by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:NVIDIA nForce AGP Bus Filter
Service name:nv_agp
Service type:kernel
Error control:normal
Group:PnP Filter
Path:%SystemRoot%\System32\drivers\nv_agp.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nv_agp

Default Behavior

The NVIDIA nForce AGP Bus Filter service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If NVIDIA nForce AGP Bus Filter fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the nv_agp service hasn't been started.

Restore Default Startup Configuration for NVIDIA nForce AGP Bus Filter

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_nvagp_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The nv_agp service is using the nv_agp.sys file that is located in the %WinDir%\System32\drivers folder. If the file is corrupted or deleted, you can put it back in there.