The root cause of this issue is due to the usage of Windows Bitlocker encryption. This error has been known to occur as a result of one of the following causes: Cause 1: Bitlocker boot agent disabled The drive where Windows is installed is locked.
Unlike most errors, this error screen isn’t identified by an error code like the “Your PC needs to be repaired” error: The screen below is displayed when you attempt to start your PC. Symptom 1: “The drive where Windows is installed is locked” error screen on startup The error messages, alerts, warnings, and symptoms below are tied to this error. The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations.
3.1 Fix #1: Use Easy Recovery Essentials.3 Fixing “The drive where Windows is installed is locked” on Windows.2.2 Cause 2: The TPM has been cleared or reset.2.1 Cause 1: Bitlocker boot agent disabled.1.2 Symptom 1: “The drive where Windows is installed is locked” error screen on startup.1 About “The drive where Windows is installed is locked”.