Users report that the latest Windows 11 update, KB5039212, is causing serious problems, including boot loops and system crashes. Here's what we know.

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems ...

Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...

Refreshing new certificates represents one of the largest coordinated security maintenance efforts across the Windows ecosystem,' Microsoft explains.

Secure Boot has relied on the same security certificates to verify bootloaders since 2011, during the development cycle for Windows 8. But those original certificates are set to expire in June and ...

Windows 11 is refreshing Secure Boot keys in 2026. Here's why TPM-WMI Event ID 1801 appears, and how to verify the new certificate.

Microsoft says it has resolved a Windows 11 bug that caused some commercial systems to fail to boot with an "UNMOUNTABLE_BOOT_VOLUME" error after installing recent security updates, with the fix ...

If you see a Blue Screen after running Automatic Startup Repair in Windows11/10, follow these proven solutions to fix the ...

Microsoft will roll out new Secure Boot certificates for Windows users starting June, as the old certificates will expire.

Microsoft is preparing to roll out new Secure Boot certificates via Windows Update to keep old PCs protected from boot‑level ...

Windows KB5077181 reportedly causes boot loops, SENS login errors, and DHCP internet failures, but there's a workaround ...

If you use Windows, it is always a good idea to have a Windows 11 or Windows 10 Bootable USB around. My new Windows setup crashed, and I had no way to use Advanced Recovery. So I had two options—find ...