Setupprep.exe file information
The process known as Windows (version 10 Setup, 10 Installation) belongs to software Microsoft Windows Operating System or Microsoft Windows Operativsystem by Microsoft (www.microsoft.com).
Description: Setupprep.exe is not essential for the Windows OS and causes relatively few problems. Setupprep.exe is located in a subfolder of "C:\"—primarily C:\$GetCurrent\media\sources\.
Known file sizes on Windows 10/11/7 are 10,366,688 bytes (66% of all occurrences) or 10,369,216 bytes. 
The file has a digital signature. It is not a Windows system file. The program is not visible.
Therefore the technical security rating is 14% dangerous.
Uninstalling this variant:
If there are any problems with setupprep.exe, you can visit the vendor's
support site or uninstall the software
Microsoft Windows using the
Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).
Recommended: Identify setupprep.exe related errors
Important: Some malware camouflages itself as setupprep.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the setupprep.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.
Best practices for resolving setupprep issues
A clean and tidy computer is the key requirement for avoiding problems with setupprep. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the setupprep.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Other processes
713xrmtmon.exe wbcore.exe sfvstserver.exe setupprep.exe pwm.exe simanticst.exe magnetengine.exe flashutil32_11_6_602_168_activex.exe flightsimulator.exe bf2.exe awmouseci.exe [all]
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