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How to remove DefragFS error


The free file information forum can help you find out if DefragFS.sys is a virus, trojan, spyware, adware which you can remove, or a file belonging to a Windows system or an application you can trust.

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DefragFS.sys file information

The process Defragmentation Support Driver belongs to the software PerfectDisk Driver or PerfectDisk 2008 Professional by Raxco Software, Inc (www.raxco.com).

Description: File DefragFS.sys is located in the folder C:\Windows\System32\drivers. Known file sizes on Windows XP are 67,352 bytes (37% of all occurrence), 68,624 bytes, 62,480 bytes, 68,376 bytes, 71,184 bytes.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. File DefragFS.sys is a Verisign signed file. It is certified by a trustworthy company. There is no detailed description of this service. The file is not a Windows core file. DefragFS.sys seems to be a compressed file. Therefore the technical security rating is 14% dangerous, however also read the users reviews.

Recommended: Identify DefragFS.sys related errors

Important: Some malware camouflage themselves as DefragFS.sys, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the DefragFS.sys process on your pc whether it is pest. We recommend Security Task Manager for verifying your computer's security. It is one of the Top Download Picks of 2005 of The Washington Post and PC World.

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DefragFS scanner


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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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