Microsoft has confirmed that some Home windows 10 and Home windows 10 Enterprise LTSC 2021 methods will boot into BitLocker restoration after putting in the Could 2025 safety updates.
The BitLocker Home windows safety characteristic encrypts storage drives to stop knowledge theft, and Home windows computer systems sometimes enter BitLocker restoration mode after occasions like TPM (Trusted Platform Module) updates or {hardware} adjustments to regain entry to protected drives.
Right this moment, Microsoft confirmed the difficulty and mentioned it is investigating reviews that “a small quantity” of Home windows 10 PCs show BitLocker restoration screens after putting in the KB5058379 replace.
“On affected units, upon putting in the replace, Home windows would possibly fail to begin sufficient occasions to set off an Automated Restore. On units with BitLocker enabled, BitLocker requires the enter of your BitLocker restoration key to provoke an Automated Restore,” the corporate mentioned in a Home windows launch well being replace.
Impacted customers who verify the Home windows Occasion Viewer may even see LSASS errors and set up failure occasions with 0x800F0845 errors within the System occasion log. Moreover, whereas some units will enter a BitLocker restoration loop after Startup Restore fails to provoke an automated restore, others will efficiently roll again to the beforehand put in replace after a number of makes an attempt to put in KB5058379.
You may retrieve the BitLocker restoration key by logging into the BitLocker restoration display screen portal along with your Microsoft account. This help web page offers additional particulars on how you can discover the restoration key in Home windows.
Microsoft says it is investigating the difficulty and can present an replace as soon as extra info relating to the basis trigger turns into accessible.
Microsoft’s acknowledgment of this situation comes after many Home windows customers and admins have reported seeing units unexpectedly enter the Home windows Restoration Surroundings (WinRE) and displaying a BitLocker restoration display screen after putting in the KB5058379 cumulative replace launched as a part of the Could 2025 Patch Tuesday.
At present, these reviews level to all kinds of system configurations and units from Lenovo, Dell, and HP being affected, so it is unclear if that is attributable to a particular {hardware} or software program situation.
“The most recent KB5058379 launched Could 13 high quality replace failed in Home windows 10 units. Some units it prompted triggering bitlocker key window after restart,” one consumer mentioned on Microsoft’s boards.
“We’ve got a couple of half dozen laptops that skilled varied intermittent points after receiving the identical KB – some require bitlocker keys to begin up, others refusing to begin in any respect,” a Home windows admin added on Reddit.
To get again into Home windows on methods caught at a BitLocker restoration immediate, you possibly can strive disabling the Intel Trusted Execution Know-how (TXT) from the BIOS. If that fails, as Microsoft help advises, you too can attempt to disable Safe Boot, Virtualization Applied sciences (if the difficulty persists), or Firmware Safety.
In August 2024, Microsoft fastened one other situation that triggered BitLocker restoration prompts on Home windows 10, Home windows 11, and Home windows Server methods after putting in the July 2024 Home windows safety updates.
Two years earlier, in August 2022, Home windows units had been impacted by comparable points after the KB5012170 safety replace prompted some units to boot into the BitLocker restoration display screen.
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