How to remove the prmrsr virus

Most antivirus programs identify prmrsr.exe as malware—for instance Kaspersky identifies it as, and TrendMicro identifies it as ADW_MARKETSCO.AC.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the prmrsr.exe malware

Prmrsr.exe file information

The process known as PermissionResearch or xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx appears to belong to software PermissionResearch or xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx by PermissionResearch ( or TMRG (

Description: Prmrsr.exe is not essential for Windows and will often cause problems. The prmrsr.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 1,646,592 bytes (37% of all occurrences), 1,622,016 bytes, 1,429,504 bytes or 1,478,656 bytes. 
The program is not visible. The file is located in the Windows folder, but it is not a Windows core file. The file is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. Prmrsr.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 79% dangerous, however you should also read the user reviews.

Recommended: Identify prmrsr.exe related errors

If prmrsr.exe is located in a subfolder of "C:\Program Files", the security rating is 80% dangerous. The file size is 1,760,896 bytes. The program is not visible. The prmrsr.exe file is certified by a trustworthy company. It can change the behavior of other programs or manipulate other programs. The file is not a Windows core file. The process uses ports to connect to or from a LAN or the Internet. Prmrsr.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs.

Uninstalling this variant: It is possible to completely remove PermissionResearch (Control Panel ⇒ Uninstall a Program).

Important: You should check the prmrsr.exe process on your PC to see if it is a threat. If PermissionResearch has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

i opened a file one day and the computer had a hissy fit and ev
Il mio pc lo identifica come una minaccia sotto i nome di: "prmrsr64.exe
It's dangerous! Don't use it!
  Jaden Fielder  
It's a virus. Remove it immediately.

Summary: Average user rating of prmrsr.exe: based on 3 votes with 4 user comments. 2 users suspect danger. One user thinks prmrsr.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving prmrsr issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active prmrsr process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the prmrsr.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

prmrsr.exe [all]