Yes, I've used it on a machine where the Disk Cleanup failed to work.
Does what it claims and seems to be quite safe BUT - make a restore point before you use it so that if the worst happens you can recover your stuff.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
Apple predictions 2017
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