Solution Have you tried F8 at boot and then from the Boot Menu choose Disable Auto Restart That might get it to give you a BSOD which will show the error. Boot error loop rebuildbcd error and cant set active volume. Method 1 Since you fixed your BCD store and now you are able to boot, I assume some kind of file corruption happened during the update process. If you are lucky, theres chance that windows have kept a shadow copy a. Last Know Good Configuration, which is a snapshot of the state of the system files, in which windows was able to boot successfully. But to make it possible on windows 1. BCD, which allows for accessing advanced options upon boot by pressing F8. Follow the instructions 1. Insert and boot from Windows 1. Installation Media. Bootrec Exe Rebuildbcd Add Installation To Boot' title='Bootrec Exe Rebuildbcd Add Installation To Boot' />When the screen to install windows appears, press ShiftF1. Assign a letter to your EFI system partition diskpart. D where D is the disk number. P where P is your EFI partition, in your case 4. N. Note Correct disk and partition numbers can be decided by enumerating disks and partitions, respectively by running following commands inside diskpart context list disk. Active legacy boot menu by running bcdedit store N EFIMicrosoftBootBCD set default bootmenupolicy Legacy. If youve got a success message, reboot and press F8 continuously until the boot menu appears. If you see Last Known Good Configuration, choose it and press Enter. Warning Please consider that it reverts back your system files and settings to a previous state, so some settings may need to be reconfigured and some installed applications might no longer be installed. Method 2 If you dont see Last Known Good Configuration in Advanced Boot Menu, or it doesnt fix the problem, you can try to fix system files by DISM 1. Bootrec. exe options The Bootrec. Use the option that is appropriate for your situation. Note If rebuilding the BCD does not. Bootrec Exe Rebuildbcd Add Installation To Boot' title='Bootrec Exe Rebuildbcd Add Installation To Boot' />Insert and boot from Windows 1. Installation Media. When the screen to install windows appears, press ShiftF1. If not already assigned, assign a drive letter to Windows Partition diskpart. D where D is the disk number. Screwloose Windows 10 Bootrec the requested system device cannot be found. Comment in English Comenten en Espaol Komentujte po slovensky Recovering the server Part 1 winload. Commands bootrec. Vac Builder Serial on this page. Experts Exchange Questions Cannot Boot into Windows SBS 2011 STD after changing to AHCI mode in BIOS My Windows Server 2008 R2 wont start and stops with Stop 7B, so I start the recovery console and use diskpart to check the disk. There are to partitions one of Type. P where P is your Windows partition. C Where C is a free drive letter to assign. Note Correct disk and partition numbers can be decided by enumerating disks and partitions, respectively by running following commands inside diskpart context list disk. Run the following command and wait for it to complete succesfully dism image C Cleanup Image Restore. Health Source wim D sourcesinstall. Note C is the drive letter of Windows partition, D is the drive letter of installation media and 1 after install.