How to solve the problem of bootmgr is missing when booting win7

Problem recovery:

win7 system cannot be booted, prompting bootmgr is missing, as follows:

Tools: U disk boot disk

Solution:

1. Insert the U disk boot disk;

2.Enter the PE system, right-click My Computer and select the management option;

3. Continue to select the disk management option;

4. Right-click the drive letter where the system is installed (usually the c drive for users), and select Mark this partition as the active partition;

5. Restart the computer.

Recommended tutorial:windows tutorial

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