HDD Scan is clone of Win Defragmenter
As soon as HDD Scan is installed on your computer, it will start a scan and report 11 critical errors e.g. "GPU RAM temperature is critically high.", "Hard drive doesn't respond to system commands", "Registry Error". Next, it will ask you to purchase the software to fix any of them.
While HDD Scan is running, it will scare you by throwing fake alerts on the screen. Some of the alerts are:
Critical Error! RAM memory usage is critically high. RAM memory failure.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, HDD Scan 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 HDD Scan removal instructions.
HDD Scan associated files:
%UserProfile%\Start Menu\Programs\HDD Scan\
%UserProfile%\Start Menu\Programs\HDD Scan\HDD Scan.lnk
%UserProfile%\Start Menu\Programs\HDD Scan\Uninstall HDD Scan.lnk