China DOS Union

As the title says, some computers have already installed a MBR-based one-click restore. How to get a prompt when reinstalling this kind of software again?

[ Last edited by XiaoGuDong on 2008-10-4 at 23:48 ]

This should mean that the partition table is full, that is, there are four primary partitions.

My computer has only one primary partition and five logical partitions, not four primary partitions, but there is a MBR-based one-key restore installed! The question is how to judge whether a MBR-based one-key restore is installed?

[ Last edited by XiaoGuDong on 2008-10-5 at 11:01 ]

This...

There are several methods of judgment.

Which one do you want to use?

Generally speaking, if you don't install other MBRs, then the most likely your MBR is the MBR of Microsoft fdisk. The function of this MBR is to boot from the boot sector of the active primary partition of the hard disk.

By comparing other MBRs with the MBR of FDISK, find some characteristic strings. For example, the first 11 bytes are all 33C08ED0BC007CFB5007501F.

Export the content of the first 11 bytes on absolute track 0 with a partition software, and compare it with the above value. If it matches, it means that no other one-key restoration is installed. If it doesn't match, it means that other MBRs are installed.