What is PGPmemlock?

The genuine PGPmemlock.sys file is a software component of PGP Desktop by PGP Corporation.
PGPmemlock.sys is a kernel driver that belongs to the PGP Desktop program, an encryption program for files and email. A kernel driver works directly with the operating system and hence, needs to function in a very stable environment. Removing this driver may result in the application not being able to function correctly. Remove the program only by uninstalling it in case there are any known issues. PGP Desktop is a software program that allows users to encrypt confidential data. PGP was the brainchild of Phil Zimmermann, a computer science graduate from New Jersey. The program was released as an open-source project in 1991 and has gone on to become one of the most popular software for email encryption in the world. Zimmermann founded the PGP Inc. in 1996 and release better versions of the software. The company was acquired the next year by Network Associates (now McAfee), but the product line was discontinued in 2002 until being taken over by a new company called the PGP Corporation. Symantec later bought the PGP Corporation in 2010.

PGPMemLock stands for Pretty Good Privacy Memory Locking Kernel Mode Driver

PGPmemlock.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if PGPmemlock.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for PGPmemlock drivers in need of updating

PGPmemlock.sys file information

The process known as Page-locking kernel mode driver belongs to software PGPsdk or PGPmemlock by Network Associates (

Description: PGPmemlock.sys is not essential for the Windows OS and causes relatively few problems. The PGPmemlock.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 6,656 bytes (70% of all occurrences) or 8,384 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. The file is not a Windows system file. PGPmemlock.sys appears to be a compressed file. Therefore the technical security rating is 40% dangerous, however you should also read the user reviews.

Recommended: Identify PGPmemlock.sys related errors

Important: Some malware disguises itself as PGPmemlock.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the PGPmemlock.sys 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

Part of PGP encryption/signing software
  VietBob   (further information)

Summary: Average user rating of PGPmemlock.sys: based on 1 vote with 1 user comment. One user thinks PGPmemlock.sys is essential for Windows or an installed application.

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Best practices for resolving PGPmemlock issues

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

PGPmemlock.sys [all]