Multi-system independent startup setting method such as Windows XP

There are more and more users installing dual systems, but the startup and maintenance of multiple systems has always been a headache, such as Windows XP (hereafter referred to as WinXP) + Windows 7 users (hereafter referred to as Win7), if the boot file Bootmgr or There is a problem with the BCD boot configuration, which often results in two systems failing to enter. This article and everyone discuss the use of XRLDR (a lightweight multi-boot management tool) to achieve WinXP, Win7, WinPE three systems independently start the method and skills.
Implement WinXP independent startup

We know that WinXP is started by "C:NTLDR". For users who install Win7 after WinXP, we only need to change the hard disk master boot record to NT52 format. After entering WinXP, copy the downloaded "bootsect.exe" to the C drive, then start the command prompt tool and enter "c:bootsect.exe /nt52 c:", when the screen appears "Bootcode was successfully updated on all targeted volumes." The prompt indicates that the master boot record was successfully changed to NT52 format. Now restart the system will automatically load NTLDR to start WinXP (the Bootmgr boot manager interface will not appear again). For users who install WinXP on the basis of Win7, do not use the above command to change the master boot record, otherwise there will be consequences of the inability of both systems to enter. After changing to the NT52 format, the hard disk master boot record will look for the NTLDR file in the root directory of the first partition (the NT60 format is looking for Bootmgr).

Implementing Win7 Independent Startup

After completing the above operations, restart the system and enter WinXP. Cut the entire directory of "C:bootmgr" file and "C:boot" to the root directory of the D drive. Then run the downloaded "bcdtool.exe" and click "Start Configuration → Open" to open the "d:bootbcd" configuration file. Select "Edit → Delete Startup Project" to delete all the original startup projects. Then select "Edit → New Vista Startup Project", select the new project, double-click the "device" item in the right pane, and change it to "partition=D:" (the drive letter is changed according to the specific partition of Win7 installation) , "description" (start menu display name) is changed to "Windows 7".

After the above startup file is moved and configured, as long as we can load "D:bootmgr", Win7 can be booted from the D drive (Bootmgr loading needs to be configured with XRLDR).