Bleeping Computer DOES NOT recommend the use of registry cleaners/optimizers for several reasons.
Why you should not use Registry Cleaners and Optimization Tools
Be sure to read Microsoft's support policy for the use of registry cleaning utilities
in that topic...Microsoft does not support the use of registry cleaners.
There are numerous programs which purport to improve system performance, make repairs and tune up a computer
. Many of them include such features as a registry cleaner, registry optimizer, disk optimizer, etc
. These registry cleaners and optimizers claim to speed up your computer by finding and removing orphaned and corrupt registry entries that are responsible for slowing down system performance. There is no statistical evidence
to back such claims. Advertisements to do so are a marketing ploy intended to goad users into using an unnecessary and potential dangerous product. I would not trust any results
such programs detect as problematic or needing repair nor recommend using the options to fix them.
Further, these types of junk optimization programs are often bundled with other software
you download and most are considered Potentially Unwanted Programs (PUPs)
so they may be detected or even removed by some security scanners which specifically look for PUPs and adware.