Windows Expansion System. How to remove? (Uninstall guide)

removal by Lucia Danes - -   Also known as WindowsExpansionSystem | Type: Rogue Antispyware

Windows Expansion System is a rogue anti-spyware application that displays fake error messages and security alerts to trick users into buying the full version of the program to remove the infections or fix the errors. These alerts may be pop-up windows from your Windows task bar that state active infections have been found or that your computer is under attack. It is promoted through the use of Trojans that usually come from fake online scanners and infected websites. Once installed Windows Expansion System will be configured to start automatically when you login to Windows. It will scan the system and then state that there are many infections on your computer. This rogue application will not allow you to remove any of supposedly found infection until you purchase the program. You should ignore what this program displays and remove Windows Expansion System from your computer as soon as possible.

Please ignore these fake security alerts as they were created to make you think that your computer is infected when in reality, the only infection infection on your computer is Windows Expansion System. You can remove the rogue program manually, but it may come bundled with other malicious software, rootkits, trojans that can install additional malware onto your computer. We strongly recommend you to use an automatic removal tool given below to remove Windows Expansion System and additional viruses from your computer. Windows Expansion System is not a program that you want on your computer or that you should trust what it says. If you have already purchased the program then we suggest you contact your credit card company and dispute the charges.

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Compatible with Microsoft Windows Compatible with OS X
What to do if failed?
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Reimage is recommended to uninstall Windows Expansion System. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

Note: Manual assistance required means that one or all of removers were unable to remove parasite without some manual intervention, please read manual removal instructions below.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.
Alternate Software
Plumbytes Anti-Malware
We have tested Plumbytes Anti-Malware's efficiency in removing Windows Expansion System (2011-03-29)
Malwarebytes Anti Malware
We have tested Malwarebytes Anti Malware's efficiency in removing Windows Expansion System (2011-03-29)
Hitman Pro
We have tested Hitman Pro's efficiency in removing Windows Expansion System (2011-03-29)
Webroot SecureAnywhere AntiVirus
We have tested Webroot SecureAnywhere AntiVirus's efficiency in removing Windows Expansion System (2011-03-29)
Windows Expansion System snapshot
Windows Expansion System

Windows Expansion System manual removal:

Kill processes:

Delete registry values:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsafwserv.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsavastsvc.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsavastui.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsegui.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsekrn.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsmsascui.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsmsmpeng.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionsmsseces.exe "Debugger" = 'svchost.exe'

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSystemRestore "DisableSR " = '1'

Delete files:
%UserProfile%\Application Data\[random].exe

Delete directories:

About the author

Lucia Danes
Lucia Danes - Virus researcher

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