Microsoft has warned that some programs could boot into BitLocker restoration after putting in the October 2025 Home windows safety updates.
BitLocker is a Home windows safety function that encrypts storage drives to dam information theft makes an attempt. Home windows computer systems usually enter BitLocker restoration mode after {hardware} modifications or Trusted Platform Module (TPM) updates to regain entry to protected drives.
In line with a service alert seen by BleepingComputer, Microsoft said that the bug primarily impacts Intel units with help for Related Standby (now generally known as Fashionable Standby), which allows the PC to stay related to the community whereas in low-power mode.
“After putting in Home windows Updates launched on or after October 14, 2025 (the Originating KBs listed above), some units may encounter points throughout restart or startup,” Microsoft stated. “Affected units may boot into the BitLocker restoration display screen, requiring customers to enter the restoration key as soon as. After the secret is entered and the machine restarts, it would boot usually with none additional BitLocker prompts.”
The checklist of platforms affected by this recognized subject consists of Home windows 11 24H2 and 25H2, and Home windows 10 22H2.
Microsoft added that IT directors can mitigate this subject with the assistance of a gaggle coverage delivered through Identified Difficulty Rollback (KIR). Nonetheless, affected clients should contact Microsoft Help for enterprise for extra particulars.
The corporate additionally launched emergency updates in Could to deal with an identical subject, days after confirming that the Could Home windows 10 safety updates had been triggering BitLocker restoration following widespread person reviews.
Final 12 months, in August, Microsoft needed to handle one other recognized subject that brought about BitLocker restoration prompts on Home windows 10, Home windows 11, and Home windows Server units after putting in the July 2024 Home windows safety updates.
In August 2022, Home windows programs had been hit by an virtually an identical bug, which brought about units to unexpectedly show a BitLocker restoration display screen after putting in the KB5012170 safety replace.
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