RegCure = rogue = dupe unsuspecting user into buying full version.
BTW, if something ever says you have 801 errors (unless they're extremely trivial . . . and a rogue always says they are "serious"), you would likely not even be able to boot your machine.
Messing up your machine may be the least of your problems (and you can always do a clean install if the removal procedure doesn't work or gets too tedious . . . actually I recommend a clean install right away anyway . . . can post my reasons here if you're curious).
IF YOU DID AN ON LINE PURCHASE, USING EITHER YOUR CHECKING ACCOUNT, CREDIT CARD, OR PAYPAL, THESE CRIMINALS ARE LIKELY TO SELL YOUR ACCOUNT NUMBER.
CALL YOUR BANK, CREDIT CARD COMPANY, OR CONTACT PAYPAL, AND HAVE YOUR ACCOUNT NUMBER CHANGED!!!!! AND ALERT THEM THAT YOU SUSPECT THERE MAY BE SOME FRAUDULENT PURCHASES.
Fixing your computer may be the least of your worries.
And you'll probably want to closely scrutinize your statements for the next coupla' months.