Tuesday, 28 June 2011

Remove QuestScan (Uninstall Guide)

QuestScan is defined as adware by some anti-virus software applications (Avira, AVG, Ikarus). It is bundled with Hotbar and other free software. We were unable to find a traditional setup executable of Quest Scan. Whenever you are searching for any keyword on the address bar of your web browser it is redirected to questscan.com search engine instead of searching for results in the Google or any other default search engine. It displays very limited and commercial results most of the time. Many users will likely find this a confusing experience because QuestScan changes the way you search the web. Besides, many users don't even know what QuestScan is. That's usually because only a small number of users will actually read the EULA or they will not fully understand they are consenting to the installation of advertising software. On the other hand, there's a great chance that such information is not always clearly presented. So, it is suggested to always look upon the files you are installing in your computer. Another problem is that some users find it difficult to remove QuestScan. If you are facing this problem with your web browser, please follow the steps in the removal guide below to remove QuestScan from your compute completely. If you have any further questions or concerns, please leave a comment below. Good luck and be safe online!

QuestScan removal instructions:

1. First of all, download recommended anti-malware software and run a full system scan. It will detect and remove this infection from your computer. You may then follow the manual removal instructions below to remove the leftover traces of this browser hijacker. Hopefully you won't have to do that.

2. Go to the Start Menu. Select Control PanelAdd/Remove Programs.
If you are using Windows Vista or Windows 7, select Control PanelUninstall a Program.

3. Search for QuestScan in the list. Select the program and click Remove button.
If you are using Windows Vista/7, click Uninstall up near the top of that window.

Alternate removal: run C:\Program Files\QuestScan\uninstall.exe

4. Scan your computer with anti-malware software to remove the leftovers of this adware from your computer.

It's possible that an infection is blocking anti-malware software from properly installing. Before saving the selected program onto your computer, you may have to rename the installer to iexplore.exe or winlogon.exe. Don't forget to update the installed program before scanning.

Remove QuestScan in Internet Explorer:

1. Open Internet Explorer. Go to ToolsManage Add-ons.

2. Select Search Providers. Select QuestScan and click Remove button to remove it.

Remove QuestScan in Mozilla Firefox:

1. Open Mozilla Firefox. Go to ToolsAdd-ons.

2. Select Extensions. Choose QuestScan Toolbar and click Uninstall button.

Associated QuestScan files and registry values:

  • C:\Program Files\QuestScan\QuestScan_deleted_
  • C:\Program Files\QuestScan\questscan.dll
  • C:\Program Files\QuestScan\questscan.exe
  • C:\Program Files\QuestScan\uninstall.exe
  • C:\Documents and Settings\All Users\Application Data\QuestScan\questscan143.exe
Registry values:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Management\ARPCache\QuestScan
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\QuestScan
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\QuestScan Service
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