1] CCleaner: CCleaner is one of the most popular and probably
the safest registry cleaners available.
So using
a safe registry cleaner occasionally to clean out registry junk might be a good idea.
HoweverI have seen no harm in using
some safe registry cleaners once in a while.
In my opinion, using
a safe registry cleaner or registry defragmenters occasionally might be good house - keeping, but do not expect any real performance gains after using a Registry Cleaner!
Not exact matches
That said, if you're dead set on running a
registry cleaner, CCleaner is one of the
safer ones.
Other antivirus programs may occasionally do a bit better in monthly tests, but they also come with a lot of bloat, like browser extensions that actually make you less
safe,
registry cleaners that are terrible and unnecesary, loads of unsafe junkware, and even the ability to track your browsing habits so they can make money.
I am sure that there are many other good freeware and shareware
registry cleaners that are
safe, but these are two freeware that I have used on my computer, without any issues.
It should be
safe to assume that
cleaning also other parts of the system had a role in the test results, and that
cleaning only the system
registry is not able to provide as clear results.