An update rollback is a recovery action that removes or reverses a recently installed software update, returning a device to an earlier state. It can restore stability when an update causes crashes, failed startup, or problems such as a desktop that will not load.
In cyber security, rollback can help keep endpoints available while administrators investigate an update defect. It is a recovery measure, not a substitute for security patching: removing an update may also remove vulnerability fixes. Organizations should use managed recovery procedures, assess the security risk, and reinstall a corrected update when available. Staged deployments and tested recovery plans can reduce disruption if an update causes problems.