Hi Mikhail,
Thank you for posting!
PC Reviver does repair registry errors, update outdated drivers, and more!
When your computer is healthy, it doesn't require any major repairs. For instance, driver updating will only occur if a new update release of the specific driver is released. That being said, if all drivers are updated, PC Reviver will skip this process. This also applies to other features of it.
If you still have questions or concerns, please contact support@reviversoft.com.
Thank you,
Ryan