Screen shoot of Win Defragmenter malware
Once installed, Win Defragmenter will display various fake warnings. Some of the warnings:
Critical Error! RAM memory usage is critically high. RAM memory failure.Win Defragmenter also will perform a fake scan and detect 11 critical errors on your computer. Remember that you should never trust this fake application and ignore all that it will display you.
Critical Error! Hard Drive not found. Missing hard drive.
Critical Error! Windows can't find hard disk space. Hard drive error
Critical Error! Damaged hard drive clusters detected. Private data is at risk.
As you can see, WinDefragmenter pretends to be a legitimate PC optimization tool but in reality is totally scam. You should remove it as soon as you notice it installed on the system. Follow the Win Defragmenter removal guidelines.