What is PL15Co2K.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 PL15Co2K.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.

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PL15Co2K.exe file information

The process known as USB Flash Disk Application belongs to software Hi-Speed USB Flash Disk by Prolific Technology (

Description: PL15Co2K.exe is not essential for Windows and will often cause problems. The PL15Co2K.exe file is located in the C:\Windows folder or sometimes in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 86,016 bytes. 
The program is not visible. It is located in the Windows folder, but it is not a Windows core file. The software starts upon Windows startup (see Registry key: MACHINE\Run). The file is not a Windows core file. PL15Co2K.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 60% dangerous, however you should also read the user reviews.

Recommended: Identify PL15Co2K.exe related errors

Important: Some malware disguises itself as PL15Co2K.exe, particularly when not located in the C:\Windows folder. Therefore, you should check the PL15Co2K.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

Hi-Speed USB Flash Disk from Prolific Technology Inc
  Mike Griffin  
installed as part of USB drive - do not need as part of win startup

Summary: Average user rating of PL15Co2K.exe: based on 4 votes with 2 user comments. 2 users think PL15Co2K.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user thinks PL15Co2K.exe is dangerous and recommends removing it.

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Best practices for resolving PL15Co2K issues

A clean and tidy computer is the key requirement for avoiding problems with PL15Co2K. 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.

To help you analyze the PL15Co2K.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PL15Co2K.exe [all]