74,139,804 programs installed

Should I remove Blur Key?

What percent of users and experts removed it?
74% remove it26% keep it
Overall Sentiment
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How common is it?
Reach 0.0003%


VersionDistribution 100.00%

Blur Key

What is Blur Key?

This is a WinCheck (variant) adware/browser hijacker variant that injects code into the user's web browser (IE, Chrome and Firefox). It is known as an ad-injector, a malicious process that once inside the web browser will hijack existing advertisements of underlying web sites (not associated with the website itself). It will also inject new ads in white space on the site or images that have standard banner sizes. These ads are typically for promoting shopping discount coupons, ads for PC optimizers or bundled PUP offers, or malvertising since it runs on sketchy ad networks.This runs as a startup process called WinCheck in the user's startup registry (Run key) and will execute each time the computer is restarted and the user logs in.

How do you know if you are infected? First, if you have this program installed then this adware is most likely still running. Next, you see ads in the browser that say something like "Ads by WinCheck".


The main program executable is answf99.exe. Typically most users end up uninstalling this just after a few days. The software installer includes 4 files and is usually about 2.65 MB (2,775,431 bytes).
  • Possible malware installed by this program
  • Displays unwanted advertisements
  • The wisdom of the crowd agrees, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in Blur Key.
answf99.exe (527d525d25ba21d24baa4b4727a47b42) has been flagged by the following 11 scanners:
Anti-Virus softwareVersionDetection
Lavasoft Ad-Aware 537 Application.Generic.1333335
Arcabit Application.Generic.D145857
avast! 2014.9-150816 Win32:Adware-CPO [PUP]
Baidu-International Adware.Win32.ConvertAd.PB
Bitdefender Application.Generic.1333335
ESET-NOD32 9.11749 a variant of Win32/Adware.ConvertAd.PB
F-Secure 11.2015-16-08_1 Application.Generic.1333335
G Data 15.8.25 Application.Generic.1333335
MicroWorld-eScan Application.Generic.1333335
Symantec 8/16/2015 rev. 1 WS.Reputation
Tencent Trojan.Win32.YY.Gen.0

Program detailsProgram details

Installation folder: C:\users\user\appdata\local\0f019e08-1431878773-ffff-ffff-50465d48b6a3
Uninstaller: "C:\users\user\appdata\Local\0F019E08-1431878773-FFFF-FFFF-50465D48B6A3\uninstall.exe"
Estimated size: 2.65 MB

Program filesFiles installed by Blur Key

Program executable:answf99.exe (Malware detected)
Additional files:
  • rnst1374.exe
  • Uninstall.exe
  • rnsqF359.exe

How do I remove Blur Key?

Quickly and completely remove Blur Key from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Download "Should I Remove It?", it's FREE!Remove Blur Key from your computer.
Or, you can uninstall Blur Key from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Blur Key, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Blur Key.
  4. If for some reason uninstallation fails, please install Microsoft's uninstall fixer utility which will help fix problems with programs that can't be uninstalled at support.microsoft.com.
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Win 7 (SP1) 50%
Win 8 50%
Uninstall it 74%
Keep it 26%
United States

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 50.00%
Windows 8 50.00%
Which OS releases does it run on?
Windows 7 Home Premium 25.00%
Windows 7 Ultimate 25.00%
Windows 8.1 25.00%
Windows 8.1 Connected 25.00%

Distribution by countryGeography

77.78% of installs come from the United States
Which countries install it?
  United States 77.78%
  Brazil 11.11%
  Germany 11.11%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Medion 25.00%
Alienware 25.00%
Acer 25.00%
ASUS 25.00%
Common models
ASUSTeK X202E 25.00%
Alienware Alienware 14 25.00%
Acer Aspire 5516 25.00%


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