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What is agp440?

Agp440.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 OS, hardware etc.
The free file information forum can help you determine if agp440.sys belonging to the Windows system or an application you can trust.

Run a free scan to check for agp440 drivers in need of updating

Agp440.sys file information

The process known as 440 NT AGP Filter belongs to software Microsoft Windows Operating System by Microsoft (www.microsoft.com).

Description: Agp440.sys is an important part of Windows, but often causes problems. agp440.sys is located in the folder C:\Windows\System32\drivers. The file size on Windows 7/XP is 42,368 bytes. http://www.file.net/process/agp440.sys.html 
The driver can be started or stopped from Services in the Control Panel or by other programs. Agp440.sys is a Windows core system file. The program has no visible window. The service has no detailed description. It is a trustworthy file from Microsoft. agp440.sys seems to be a compressed file. Therefore the technical security rating is 4% dangerous; however you should also read the users reviews.

Recommended: Identify agp440.sys related errors

Important: Some malware disguises itself as agp440.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the agp440.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Graphics system file for XP - examine properties to make sure it is from MS
  YeeFam   (further information)
The fix is simple disable it.. follow MS instructions here.
  Wilhelm Lehmann   (further information)
If this seems to be the problem, my experience was that it is due to faulty memory every time,
  Roger Monk  
Seems like common problem with crashing at apg440.sys and not booting after that. Can be fixed only by disabling it.
when I on in Safe mode it hangs

Summary: Average user rating of agp440.sys: based on 5 votes with 5 user comments.
2 users think agp440.sys is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. One user thinks agp440.sys is dangerous and recommend removing it.

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Agp440 scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

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Other processes

agp440.sys [all]