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 information theft, and Home windows computer systems usually enter BitLocker restoration mode after occasions like TPM (Trusted Platform Module) updates or {hardware} adjustments to regain entry to protected drives.
At the moment, Microsoft confirmed the problem and stated it is investigating experiences 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 start out sufficient instances to set off an Computerized Restore. On units with BitLocker enabled, BitLocker requires the enter of your BitLocker restoration key to provoke an Computerized Restore,” the corporate stated 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 portal along with your Microsoft account. This assist web page gives additional particulars on tips on how to discover the restoration key in Home windows.
Microsoft says it is investigating the problem and can present an replace as soon as extra info concerning the foundation trigger turns into obtainable.
Microsoft’s acknowledgment of this problem comes after many Home windows customers and admins have reported seeing units unexpectedly enter the Home windows Restoration Setting (WinRE) and displaying a BitLocker restoration display after putting in the KB5058379 cumulative replace launched as a part of the Could 2025 Patch Tuesday.
At present, these experiences 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 problem.
“The newest 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 stated on Microsoft’s boards.
“We’ve got a couple of half dozen laptops that skilled numerous intermittent points after receiving the identical KB – some require bitlocker keys to start out up, others refusing to start out 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 attempt disabling the Intel Trusted Execution Know-how (TXT) from the BIOS. If that fails, as Microsoft assist advises, you can too attempt to disable Safe Boot, Virtualization Applied sciences (if the problem persists), or Firmware Safety.
In August 2024, Microsoft fastened one other problem 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.
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