Some pop ups propose to be able to scan to find and amend all your errors in registry now (at a cost of course).  Be on your guard about buying into scams, that is what most of these pop up pages happen to be.
The con men that design the pages and pop ups, know they are able to draw in you who know little about maintaining a computer. They'll claim to find corruption that does not even exist.

All sorts of cons are an obstacle online, but ones involving the online registry cleaner are particularly vast in number.

There are many scams in other products that are only designed to relieve you of your cash.
You might have learned that it's important to run a scan over the registry to clear it of errors and fragments, hence you will be ready to fork out money to let an online registry cleaner to mend your slow running computer. The best and safest sort of online registry cleaner will be downloaded, installed and operated on the computer itself.

Here is a recommended, reputable and safe online registry cleaner.

Online registry cleaner don't believe pop ups.

Identity theft is on the way up due to people giving up their credit card numbers and other personal information to these scammers.  Never trust anything that will remotely go into your computer without permission.  There are lots of dishonest people who will resort to this method to get your personal information.

Don't give away your cash or your identity to these con men.

The personal details that you have kept safe on your computer should stay safe.
It is a fact that fragments in the registry do cause computers to slow, freeze and sometimes crash.  It is also a fact that software has to be employed to repair the registry.
A good online registry cleaner is the only real way to repair all the corruption in your registry.

Protect your online identity, stay safe and don't let anybody else become you!!!