Windows 11’s latest patch declares war on BIOS updates for some Lenovo laptops, blocking them as a security risk in a bizarre turn of events

image via TechRadar

March 28, 2025, 10:27 AM

• •Microsoft has blocked a certain executable file (WinFlash64.exe) in the latest patches for Windows, a change made for security reasons.
• •This is causing BIOS updates to fail on some Lenovo ThinkPad laptops.
• •The easiest way to work around the glitch is to use Windows Update to apply the BIOS update for your Lenovo ThinkPad.

Some Lenovo ThinkPad owners are finding they can’t apply a BIOS update in certain scenarios because Microsoft has blocked a certain executable file (WinFlash64.exe) in the latest patches for Windows. The easiest way to work around the glitch is to use Windows Update to apply the BIOS update for your Lenovo ThinkPad.

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