There's a good chance that optimize313.exe is malware, a virus, or a harmful file of some type. This process must be removed from your system quickly to prevent damage and protect the security of your system.

optimize313 has been linked to the malware Spyware.W32.DyFuCA, and should be cleaned immediately. Before making any changes to your system, you should backup your files, or create a Windows system restore point, so you don't lose any important data.

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Since optimize313.exe is running on your system, there is a good chance that there are different kinds of virus lurking. Scanning your system for free is the best way to avoid major problems in the future.