Advanced SystemCare Free is a great free software for pc maintenance developed by IObit, it works on Windows O.S. and available in many languages.
Thanks to a simple user interface we can easily do various tasks between Maintain Windows, Diagnose System, Utilities.
About Windows maintenance we can scan system to find spyware, registry problems, erase activity history and surfing traces, clean junk files.
About Utilities you can start various tools from a control panel with icons. You can start other IObit programs like defragmentation, Security 360, Game and Internet Booster, moreover there are also disk checking and cleaning, fix shortcuts, optimize RAM
About diagnose system you can perform computer and network optimization and defragment disk too.
On main interface there are also 2 useful tasks likeTurbo Boost (on or off to activate or deactivate it) and Restore where you can create restore point if you wanna do a rollback if you notice some problems after used the program.
In conclusion i can really say that Advanced SystemCare Free is a great product easy to use (feature of all IObit software) and very useful to completely fix your slow PC.
I also wanna remember that it has received many awards and reviewed/suggested from various important sites (CHIP, Softonic, ZDNet), recently it was ranked Ranked #7 in cnet Top10 Download List of 2010.
[UPDATE]
You can read the new review of version 4 here
