How to remove the questscan virus

Most antivirus programs identify questscan.exe as malware—for instance Symantec identifies it as WS.Reputation.1, and Kaspersky identifies it as not-a-virus:AdWare.Win32.Zwangi.ioi.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the questscan.exe malware

Questscan.exe file information

Windows Task Manager with questscan
Questscan.exe process in Windows Task Manager

The process known as questscan.exe belongs to software QuestScan (version 1.0 build 145 powered by) by unknown.

Description: Questscan.exe is not essential for Windows and will often cause problems. Questscan.exe is located in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 26,112 bytes. 
There is no description of the program. The program has no visible window. The file is not a Windows system file. Therefore the technical security rating is 56% dangerous.

Uninstalling this variant: In case of any problems with questscan.exe, you can safely remove the program using the uninstall program of QuestScan 1.0 build 145 powered by or QuestScan (Control Panel ⇒ Uninstall a Program).

Recommended: Identify questscan.exe related errors

Important: You should check the questscan.exe 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.


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Best practices for resolving questscan issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active questscan process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the questscan.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

questscan.exe [all]