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After installing Windows update KB5127936, an ASUS VivoBook X515EA running Windows 11 Home stopped booting normally.
The computer displays the ASUS logo, then goes to a black screen or restarts, eventually entering Automatic Repair with an SrtTrail.txt error.
Troubleshooting performed:
Uninstalled/rolled back the latest quality update, but the issue persisted.
Attempted Startup Repair, which was unsuccessful.
Rebuilt the EFI boot files and BCD configuration without success.
The computer was operating before the update, and the failure occurred immediately afterwards. I suspect KB5127936 may have introduced a boot-related issue or triggered corruption that was not reversed when the update was uninstalled.
Has anyone else experienced boot failures after installing KB5127936? Is Microsoft aware of any compatibility issues, and is there a recommended repair procedure that does not require reinstalling Windows? I had to completely wipe the PC and start fresh.
Hello,
Welcome to the Microsoft Windows Community.
Good evening, @Brian . Let’s try a repair using Windows RE:
1. Connect the charger, hold down the Shift key, and restart the computer three consecutive times when the Asus logo appears.
2. Once you reach the repair screen, click on "Advanced options" -> "Reset this PC" -> "Get started" -> "Keep my files."
Please let us know the outcome.
Hi Dio,
This will not work, after resetting, and doing the update, it will fail again on the PC.
Regards,
Brian
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Hi Dio,
I am experiencing a nearly identical issue with KB5127936 on a Dell XPS 8960 running Windows 11 25H2. After the installation, the computer would no longer boot. There was no error message; the system immediately attempted an automatic repair, followed by a restart - which simply led back into another automatic repair loop...
Using a recovery medium from my backup software, I discovered that the update had scrambled my drive designations. My system contains three SSDs and one HDD; following the update, my C: drive had been reassigned as the E: drive. I was able to correct this using DISKPART, but the computer still failed to boot, continuing to cycle endlessly through automatic repairs. I suspect the update altered or corrupted the boot partition. I managed to resolve the situation by restoring a backup of the entire volume containing both the C: drive and the boot partition. Afterward, I paused my backups - though this is hardly a proper solution.
Best regards,
Hans
Hi,
I’m glad that’s resolved, Brian.
Please consider rating my support by clicking "yes" or "no" under "Was this response helpful?"
Hi, @BNPM617 . Access your device's BIOS and go to "Advanced Options" -> Boot => Enable the "Windows Boot Manager" option -> Save your changes by pressing F4 or F10, and let me know if the problem has been resolved.
Hi Dio,
The Windows Boot Manager was already enabled. Do you have any further suggestions?
Best regards,
Hans
