There are a lot of fake tools out there, that pretend they can enhance your system. RegTool is a fake registry optimizer, that comes bundled with Trojans and settles down into your system with intention to swindle you out of your money. It is a direct clone of RegFix, ErrorRepairTool, ErrorEasy and other similar programs that pose as legitimate registry cleaners. RegTool tries to convince you that your registry has critical errors and you must purchase the full version of the program in order to fix it.
The reason why RegTool is able to fool a lot of computer users is because it has a sophisticated interface that makes it look like a legitimate application. Once the program is installed, it pops into action and performs a fake registry scan. During the scan, a number of registry errors are "detected". RegTool will also claim that you have faulty browser settings and it will suggest to defragment your hard disk and install additional updates for Adobe and Java applications.
Naturally, you cannot believe in whatever RegTool has to say, because it would result in devastating consequences. Instead of "installing" updates via RegTool, check your Adobe and Java applications to see whether they really are up-to-date. If you are running an older version of an application, it is very possible that the vulnerabilities present in the setup of the older version can be exploited to infect your computer with malware.
Instead of paying your money for a service that cannot be delivered, you have to remove RegTool from your computer immediately. You are risking a far more dangerous infection if you allow this fake registry optimizer to stay in your system. Acquire a powerful security tool that will terminate RegTool for you automatically. This will also ensure that your computer is protected against other possible computer threats that might target your system's integrity.