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 activation.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: Activation.exe is not essential for the Windows OS and causes relatively few problems. The file activation.exe is located in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 241,714 bytes (50% of all occurrences) or 245,810 bytes.
The program has a visible window. You can uninstall this program in the Control Panel. The process starts when Windows starts (see Registry key: MACHINE\Run). The activation.exe file is not a Windows system file. activation.exe appears to be a compressed file. Therefore the technical security rating is 6% dangerous; however you should also read the user reviews.
Recommended: Identify activation.exe related errors
If activation.exe is located in a subfolder of the user's profile folder, the security rating is 0% dangerous. The file size is 740,112 bytes. The program has a visible window. The activation.exe file is a Verisign signed file. It is certified by a trustworthy company. Activation.exe is not a Windows system file. activation.exe appears to be a compressed file.
External information from Paul Collins:
There are different files with the same name:
Important: Some malware camouflages itself as activation.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the activation.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 activation. 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 activation.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.