Run these commands:īefore moving on, try to automatically rebuild the BCD bootloader configuration with the following commands (this is the easiest way for beginners):īootrec /FixBoot – the command creates a new boot sector on the system partition and overwrites the boot record of the PBR partition.īootrec /ScanOs – scan all drives and look for installed copies of Windows that are not in the Boot Configuration store Next, you need to identify the local drives and volumes on your computer (most likely the drive letters assigned to them will be different from those you see when working in Windows). If there is no asterisk in the GPT column, then you have the MBR partition table on the disk, and you can continue to follow this guide.

This means that you have a computer with UEFI, and to restore Windows the bootloader, you need to use the article from the link above If a disk has an asterisk ( *) in the Gpt column, then the GPT partition table is used on this disk.How to understand if you have a computer with BIOS or UEFI? The easiest way is to check the disk partition table on which Windows is installed: GPT or MBR.

On computers with UEFI firmware, you need to use the following guides to repair the EFI bootloader on Windows 10 or to restore deleted EFI partition.

All instructions given below are suitable for standard BIOS computers (or booting in UEFI legacy mode) with the MBR partition table.

Windows boot manager windows 7