Registry Mechanic
Ease of Use:
Registry Mechanic will automatically scan (using either a deep or a quick scan) at startup if you choose, then you can select some or all the registry errors found during the scans for repair using checkboxes.
We found Registry Mechanics to be simple for novices yet customizable for professionals. The program navigation is beautifully designed and intuitive, and Registry Mechanics offers conveniences—such as a resizable dialogue screen.
Feature Set:
Registry Mechanic 5.0 scans faster and detects more registry errors than the 4.0 version. You can automatically scan the registry for errors, scan sections of your hard drive, and even scan the Windows add/remove list for errors.
Registry Mechanic helps you find efficient ways to bring your computer up to speed; there’s more than one way to solve a problem. For example, instead of simply deleting a bad link, Registry Mechanic can search and find where the link should connect, then make the full repair.
Registry Mechanic doesn’t lead you directly to registry errors. This is safer for novices, but inconvenient for those who aren’t. Instead, the program shows the path to the error so you can go there manually (necessary when dealing with resilient spyware).
Registry Mechanic 5.0 lacks an individual undo tool, so you’ll have to restore all your data back to a specific point in time to restore one lost registry item.
Ease of Installation:
Installing Registry Mechanic 5.0 was simple.
Help/Support:
The help and documentation section is new and improved—giving you instant access to a help manual through the convenient Help key. Online, Winguides offers excellent articles, FAQs, forums, and email support.
Also, the live update tool lets you get timely software upgrades automatically.
Safety:
Safety is critical to registry repair—the best programs hold your hand and warn you of dangers. Registry Mechanic does an adequate job identifying potential problems. We feel that detailed severity rankings would make Registry Mechanic even safer for novices to use.
Summary:
Registry Mechanic is an efficient, user-friendly program. Additional features, such as individual undo capabilities, would make registry repair more convenient for those familiar with registry repair.
source: *registry-repair-software-review.toptenreviews.com/registry-mechanic-review.html
so i will say Registry Mechanic is the best