84,488,480 programs installed

Should I remove UnknownFile?

What percent of users and experts removed it?
70% remove it30% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #9,734
United States Rank #12,651
Reach 0.0376%
Lifespan of installation (until removal)
< 12.67 days
373.75 days >
Average installed length: 196.38 days


VersionDistribution 100.00%


What is UnknownFile?  (from PerformerSoft)

UnknownFile is an app that solves the mystery and makes the search easy. With thousands of diverse file types available at your fingertips, you’ll never struggle with bizarre files again. Now, when you receive notice that your computer doesn’t recognize your new file, you can let Windows find an alternative among its l...  Read more


UnknownFile is a software program developed by PerformerSoft. It adds registry entry for the current user which will allow the program to automatically start each time it is rebooted. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The primary executable is named unknownfile.exe. Many users end up uninstalling this after less than a month of it being installed. The setup package generally installs about 9 files and is usually about 12.23 MB (12,827,757 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows 10. While about 29% of users of UnknownFile come from the United States, it is also popular in Canada and India.
  • Malware detected in the program
  • Starts automatically
  • Delivers various 'optional' bundled software during install
  • The wisdom of the experts agree, if you don't use it you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in UnknownFile.
PCPerformer.exe (8d4adba6b0a4729eb20140bca66a66fa) has been flagged by the following 6 scanners:
Anti-Virus softwareVersionDetection
AVG 2015.0.3489 MalSign.InstallBrain
McAfee 5600.7145 Artemis!8D4ADBA6B0A4
McAfee-GW-Edition 7.7145 Artemis!8D4ADBA6B0A4
Panda Antivirus PUP/Ibups
TrendMicro-HouseCall 7.2.120 TROJ_GEN.F47V0220
VIPRE Antivirus 28678 InstallBrain (fs)
UnknownFile has been seen bundling various 3rd party software during the installation process. Make sure to check for and remove unused programs.

Program detailsProgram details

Displayed publisher: UnknownFile
URL: www.unknownfile.com/contact.html
Installation folder: C:\Program Files\pc performer
Uninstaller: "C:\Program Files\Uninstall Information\97\4439\uninstall.exe" /PUninstall="HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\Unk
Estimated size: 12.23 MB

Program filesFiles installed by UnknownFile

Program executable:unknownfile.exe
Path:C:\Program Files\pc performer\unknownfile.exe
Additional files:
  • PCPerformer.dll - PC Performer
  • (Malware detected) PCPerformer.exe
  • uninst.exe - UnknownFile
  • CleanSchedule.exe
  • isxdl.dll (by Bjørnar Henden) - ISX Download DLL
  • unins000.exe - Setup/Uninstall
  • uninstall_nsis.exe
  • xmllite.dll (by Microsoft) - Microsoft XML Core Services (Microsoft XmlLite Library)

Program behaviorsBehaviors exhibited

Scheduled Task
  • PCPerformer.exe is scheduled as a task named '_UPDATES' (runs weekly on Wednesdays at 21:01).
Scheduled Task (Boot/Login)
  • PCPerformer.exe is automatically launched at startup through a scheduled task with the class {FDECA3B5-3651-4722-B290-541F317BE05D}.
Startup File (User Run)
  • PCPerformer.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'RDReminder' and executes as C:\Program Files\PC Performer\PCPerformer.exe -rem.

How do I remove UnknownFile?

You can uninstall UnknownFile 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/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program UnknownFile, click it, and then do one of the following:
    • Windows Vista/7/8/10: 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 UnknownFile.
  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.

Win 7 (SP1) 51%
Win Vista 0%
Auto-starting? Yes
(Found in the run registry)
Uninstall it 70%
Keep it 30%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 59.33%
Windows 10 31.28%
Windows XP 5.10%
Windows Vista 4.30%
Which OS releases does it run on?
Windows 7 Ultimate 23.07%
Windows 7 Home Premium 19.95%
Windows 8.1 13.57%
Windows 7 Professional 11.26%
Microsoft Windows XP 5.02%
Windows Vista Home Premiu... 3.93%

Distribution by countryGeography

29.08% of installs come from the United States
Which countries install it?
  United States 29.08%
  Canada 4.87%
  India 4.14%
  DZ 3.89%
  Germany 2.80%
  IQ 2.31%
  MA 2.07%
  Iran 2.07%
  United Kingdom 1.95%
  Australia 1.82%
  Russia 1.70%
  Saudi Arabia 1.70%
  France 1.58%
  United Arab Emirates 1.58%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 28.13%
Acer 21.19%
Dell 18.30%
Toshiba 7.71%
Lenovo 6.94%
ASUS 6.74%
Samsung 4.82%
Intel 1.35%
Sahara 0.96%
MSI 0.77%
Common models
HP Pavilion g6 Notebook P... 5.16%
HP 15 Notebook PC 4.37%
HP Pavilion 15 Notebook P... 3.57%
HP 2000 Notebook PC 3.17%
Dell Inspiron 1545 2.38%
HP Pavilion dv6 Notebook ... 2.38%

About PerformerSoft

PerformerSoft products bundle one or more of the following potentially unwanted software programs including Babylon Toolbar from Firefox, Chrome and Internet Explorer browsers, Searchcore Toolbar, DealFinder add-on, PriceGong, Findamo, and many others.
Publisher URL: www.performersoft.com


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