Resolving an operating system corruption issue can be difficult. It is recommended to take the following steps in order:

1. Backup important data. This is to ensure important information is not lost in the event of repairs or replacement of the OS.
2. Diagnose the cause. This can be done through troubleshooting and software & hardware diagnostics.
3. Identify solutions. Solutions can range from repairing the operating system, reformatting the disk, and/or reinstalling the operating system.
4. Implement solution. Choose the optimal solution and go through with the repair or reinstallation.
5. Verify the results. Check to make sure that the issue has been resolved to make certain the repairs went through correctly.