Very helpful. It does well in improving start-up time and comprehensive performance. At least, I do not need to wait for 3 minutes to start my computer. Most importantly, it saves more disk space for me to download useful software. I sincerely recommend you to install one in your computer, I believe it will be helpful to most of computer owners.
---- Buck Bertram
"A helpful tool when you decide whether you're going to keep a program."
---- Kenneth Bertram
on demand error 101 could happen when the hard disk has not sufficient space.
computer BIOS might be incompatible or it might need to be updated.
video adapter drivers may be incompatible
device driver or a system service might be missing.
Corruption in Windows registry from a recent software change (install or uninstall).