Registry Mechanic 

Registry Mechanic is an advanced registry cleaner for Windows that can safely clean and repair problems with your registry in a few simple mouse clicks! Easily fix problems with the Windows registry that are a common cause of crashes and errors.
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Windows Registry Repair Pro 

Registry Repair Pro scans the Windows registry for invalid or obsolete information in the registry. When you fix this information it will make your PC run faster and will make your PC error free.
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