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 PStart.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.
Description: PStart.exe is not essential for the Windows OS and causes relatively few problems. PStart.exe is located in a subfolder of "C:\Program Files" or sometimes in C:\.
Known file sizes on Windows 10/8/7/XP are 786,952 bytes (66% of all occurrences) or 647,176 bytes.
There is an icon for this program on the taskbar next to the clock. It is not a Windows system file. PStart.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 27% dangerous, however you should also read the user reviews.
Recommended: Identify PStart.exe related errors
If PStart.exe is located in a subfolder of the user's "Documents" folder, the security rating is 50% dangerous. The file size is 647,176 bytes. The program is not visible. The process starts upon Windows startup (see Registry key: Run, User Shell Folders). PStart.exe is not a Windows system file. PStart.exe is able to record keyboard and mouse inputs and monitor applications.
Important: Some malware camouflages itself as PStart.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the PStart.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.
A clean and tidy computer is the key requirement for avoiding problems with PStart. 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 PStart.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.