What is PCLib.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 PCLib.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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PCLib.exe file information

Windows Task Manager with PCLib
PCLib.exe process in Windows Task Manager

The process known as PCLib Applicazione MFC belongs to software PCLib Applicazione by unknown.

Description: PCLib.exe is not essential for Windows and will often cause problems. The PCLib.exe file is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\. The file size on Windows 10/8/7/XP is 323,584 bytes. 
There is an icon for this program on the taskbar next to the clock. There is no information about the author of the file. It is not a Windows system file. PCLib.exe is able to record keyboard inputs. PCLib.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 62% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to go to the software publisher,, for advice or completely remove Office-Bibliothek (Control Panel ⇒ Uninstall a Program).

Recommended: Identify PCLib.exe related errors

Important: Some malware camouflages itself as PCLib.exe. Therefore, you should check the PCLib.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

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Summary: Average user rating of PCLib.exe: based on 2 votes with 2 user comments. 2 users think it's neither essential nor dangerous.

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Best practices for resolving PCLib issues

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

PCLib.exe [all]