What is prio_svc.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the prio_svc.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for prio_svc.exe related errors

Prio_svc.exe file information

Windows Task Manager with prio_svc
Prio_svc.exe process in Windows Task Manager

The process known as Prio Service or Prio - Process Priority Control belongs to software Prio by O&K Software LTd or O&K Software (

Description: Prio_svc.exe is not essential for the Windows OS and causes relatively few problems. Prio_svc.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 5,120 bytes (60% of all occurrences), 12,656 bytes, 11,184 bytes or 9,936 bytes. 
There is no file information. The program has no visible window. The prio_svc.exe file is not a Windows core file. Therefore the technical security rating is 42% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to get help from the software vendor Prnwatch or uninstall the program using the Control Panel ⇒ Uninstall a ProgramPrio.

Recommended: Identify prio_svc.exe related errors

Important: Some malware camouflages itself as prio_svc.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the prio_svc.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Process Priority Controller program. Suppose to let you set your process prioritys and save those settings.
Prio is a utility for saving the priority of applications
  Chip   (further information)

Summary: Average user rating of prio_svc.exe: based on 2 votes with 2 user comments. One user thinks prio_svc.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous.

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Best practices for resolving prio_svc issues

A clean and tidy computer is the key requirement for avoiding problems with prio_svc. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the prio_svc.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

prio_svc.exe [all]