Introduction

O&O Check&Repair checks Windows components, system files, the system drive and the recovery environment, then repairs the problems it finds. It is intended for anyone who maintains a Windows 10 or Windows 11 computer and wants a repair that uses the built-in Windows maintenance functions in one run.

This manual explains how to get started, how to use the checks and the repair, and what the results mean. Choose a chapter from the sidebar, or follow one of the links below.

• First steps: complete a first session.
• Feature overview: find the right workflow.
• System requirements: check access and prerequisites.
• Troubleshooting: solve problems with checks, repairs and the application.
• FAQ: short answers to common questions.
• Support and more from O&O: prepare a support request.

Menu names and buttons in this manual use their English labels. If the application runs in another language, the controls are in the same places.

O&O Check&Repair is freeware and free of charge to use. It is also supplied as part of O&O Defrag 32 and O&O DiskImage 23.