Win7 system does not boot Safe mode enter the card in Disk.sys how to do

Reason Analysis:

This type of problem usually occurs because the partition format is not successfully converted into MBR format, please back up the data, then use the pure installation version of the media, use the command conversion format can be resolved.

　　Scope of application:

ThinkPad, preloaded Win8, preloaded linux,win7

Crash diagram in Safe mode:

　Operation Steps:

1, use the DiskPart tool to repartition. First use the Windows 7 CD or U disk boot, into the system installation interface;

2, in the selection of the partition interface in the keyboard press "SHIFT+F10" or "SHIFT+FN+F10" shortcut key combination, open a command prompt window;

3, in the open window in turn, enter the following command, each lose a line of return, the specific operation orders are as follows;

DiskPart

Select Disk 0

Clean

Convert MBR

Exit

4, then turn off the cmd window, and then refresh the partition, and then reinstall the system can be.