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Process name: Windows Service Pack Uninstall
Application using this process: Microsoft® Windows® Operating System
Recommended: Scan your system for invalid registry entries.
What is spuninst.exe doing on my computer?
spuninst.exe is a process associated with Microsoft® Windows® Operating System from Microsoft Corporation. File spuninst.exe is located in a subfolder of C:\Windows. Known file sizes on Windows XP are 562176 bytes (50% of all occurrence), 169984 bytes.
The program is not visible. spuninst.exe is not a Windows system file. spuninst.exe is able to monitor applications, hide itself and manipulate other programs. It can also be concealed as malware so running a system scan is advisable.
Non-system processes like spuninst.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.