Do I have the latest version?

Yes. If there is a new version, a prompt will be displayed.

How to restore my registry?

MaxPerforma Optimizer makes a backup of your registry every time you fix errors. They are stored in the "Backup" section. Go to Backup, select a date from which to restore and click on Restore.

Why do I get the same errors on my computer after several scans?

Unfortunately some programs consistently create invalid registry entries even if they were previously removed by MaxPerforma Optimizer.

To prevent this you will have to find and uninstall the program that is causing this.

Will MaxPerforma Optimizer backup my registry before I click on the Fix errors button?

Yes, the software automatically creates backup before every fix.