Would you like to use O&O Check&Repair in your company? Find out more here.

For an error-free and stable Windows system

O&O Check&Repair is an integral part of O&O Defrag and ensures the automatic inspection and repair of your drives. The feature detects file system errors, corrupted structures, and inconsistencies that can affect the stability and performance of your Windows system. Through thorough analysis, problems are detected early and reliably corrected – even before data is lost or applications unexpectedly smear. This keeps your system stable, secure, and responsive over time.

Automatic detection of file system errors

  • Finds corrupted structures, erroneous entries, and inconsistent file system areas
  • Provides secure analysis of all connected disks

Reliable drive error repair

  • Fixes found errors automatically or, if desired, manually
  • Improves stability and reliability of the entire system

Data loss prevention

  • Early detection of critical errors that could lead to data loss
  • Ideal for preventive system maintenance and long-term data security

Optimized system performance with error-free drives

  • An intact file system ensures faster access and more stable behavior
  • Prevents performance degradation due to damaged sectors or faulty structures

Transparent diagnostic reports

  • Shows detailed information about problems found and repairs performed
  • Gives full control and comprehensibility when making technical decisions

Seamless integration into O&O Defrag

  • Perfectly matched with defragmentation and system optimization
  • Part of O&O Defrag 30 – for maximum stability and performance

Supports all common drive types

  • Compatible with HDDs, SSDs, NVMe and external drives
  • Works on modern versions of Windows without additional software

Easy to use

  • Intuitive interface with clear results
  • Also ideal for users with no prior technical knowledge