Microsoft has confirmed that some Home windows 10 and Home windows 10 Enterprise LTSC 2021 programs will boot into BitLocker restoration after putting in the Might 2025 safety updates.
The BitLocker Home windows safety characteristic encrypts storage drives to forestall knowledge 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.
Immediately, Microsoft confirmed the difficulty and stated it is investigating studies that “a small quantity” of Home windows 10 PCs show BitLocker restoration screens after putting in the KB5058379 replace.
“On affected gadgets, upon putting in the replace, Home windows may fail to start out sufficient instances to set off an Computerized Restore. On gadgets 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 test 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 gadgets 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’ll be able to retrieve the BitLocker restoration key by logging into the BitLocker restoration display screen portal along with your Microsoft account. This help web page supplies additional particulars on the right way to discover the restoration key in Home windows.
Microsoft says it is investigating the difficulty and can present an replace as soon as extra data concerning the foundation trigger turns into obtainable.
Microsoft’s acknowledgment of this problem comes after many Home windows customers and admins have reported seeing gadgets unexpectedly enter the Home windows Restoration Atmosphere (WinRE) and displaying a BitLocker restoration display screen after putting in the KB5058379 cumulative replace launched as a part of the Might 2025 Patch Tuesday.
At present, these studies level to all kinds of system configurations and gadgets from Lenovo, Dell, and HP being affected, so it is unclear if that is attributable to a selected {hardware} or software program problem.
“The most recent KB5058379 launched Might 13 high quality replace failed in Home windows 10 gadgets. Some gadgets it prompted triggering bitlocker key window after restart,” one person stated 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 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 programs caught at a BitLocker restoration immediate, you’ll be able to strive disabling the Intel Trusted Execution Know-how (TXT) from the BIOS. If that fails, as Microsoft help advises, you may also attempt to disable Safe Boot, Virtualization Applied sciences (if the difficulty 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 programs after putting in the July 2024 Home windows safety updates.
Two years earlier, in August 2022, Home windows gadgets have been impacted by comparable points after the KB5012170 safety replace prompted some gadgets as well into the BitLocker restoration display screen.
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