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

removal by Linas Kiguolis - -   Also known as WindowsSystemDefender, WindowsSystem Defender, Windows SystemDefender | Type: Rogue Antispyware
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Windows System Defender is a misleading security application that gives false reports of threats on your computer to make you think your PC is badly infected with malware. The rogue application is from the same family as Windows PC Defender and Windows Protection Suite. When running, it will prompt you to pay for a full version of the program to remove the threats which do not even exist. Do not purchase this malware and uninstall Windows System Defender from your PC as soon as possible.

Once Windows System Defender is installed, it performs the following actions:

  • Creates a startup registry entry so that it executes whenever Windows starts
  • Modifies Windows Hosts file, blocks access to certain security websites
  • Produces outbound traffic
  • May request other malicious files from the Internet

Another interesting thing is that the program supposedly removes several infections for free. You have to pay if you want to remove all infections. What is more, WindowsSystem Defender will constantly display fake security alerts and notifications from Windows Task bar. The fake notification states:

System alert
malicious applications, which can contain trojans, were found on your PC and need to be immediately removed. Click here to remove these potentially harmful items using Windows System Defender.

Pop-up message in System Tray
Windows System Defender security alert

Windows System Defender will also impersonate Windows Security Center and state that your computer is unprotected. It will suggest you to active Windows SystemDefender in order to ensure full system protection. However, please note that the legitimate one does not promote any anti-virus software, that’s the main difference. The misleading application, will block certain security software too. If you find that your computer is infected with this malware, please use the removal guide below to remove Windows System Defender manually for free. We also recommend you to scan your computer with a reputable and legitimate anti-spyware application. If you have inadvertently purchased this program, please contact your credit card company immediately.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove Windows System Defender you agree to our privacy policy and agreement of use.
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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Windows System Defender. 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.
Windows System Defender snapshot
Windows System Defender

Windows System Defender manual removal:

Kill processes:
[RandomNumber.exe] for example WS83b.exe

FS.exe

SICKBOY.exe



Delete registry values:
HKEY_USERS.DEFAULTSoftwareMicrosoftInternet ExplorerSearchScopes "URL" => "http://search-gala.com/?&uid=222&q={searchTerms}"

HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerDownload "RunInvalidSignatures" => "1"

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun "Windows System Defender"

Unregister DLLs:
mozcrt19.dll

sqlite3.dll

ANTIGEN.dll

cid.dll

ddv.dll

exec.dll

ppal.dll

Delete files:
WS83b.exe

8727.mof

mozcrt19.dll

sqlite3.dll

WSD.ico

vd952342.bd

wsd.cfg

Windows System Defender.lnk

cookies.sqlite

ANTIGEN.dll

cid.dll

ddv.dll

eb.sys

eb.tmp

energy.sys

exec.dll

exec.tmp

FS.exe

kernel32.drv

PE.drv

PE.sys

PE.tmp

ppal.dll

SICKBOY.exe

search.xml

Delete directories:
%UserProfile%Application DataWindows System Defender

c:Documents and SettingsAll UsersApplication Data61a60WSDDSys

c:Documents and SettingsAll UsersApplication Data61a60

c:Documents and SettingsAll UsersApplication DataWSDDSys

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

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  • Guest

    If Task manager is not showing up, checkthe following entry in the registry:
    HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Optionstaskmgr.exe
    If there is an registry key called Debugger, delete it and you will be able to launch task manager.

  • Guest

    don't down;oad this tool!!! will not remove – just wants you to buy

  • Guest

    thank you so much dude….
    I am very lucky to find this website because I almost bought the program ..
    thanks for the information

  • Guest

    yeah…it sucks..it doesn't help us removing it…
    we have to buy the program first…what a waste