How to install Windows 7 bootloader as a second system only in its own partition?

Question

Windows

Given:

• The first primary partition is Ubuntu /boot (ext2, two gigs so as not to bother with removing old kernels)
  
• Second Primary Partition - Windows XP
  
• First logical partition - Windows 7
  
• Second logical partition - Windows 10 (actually only planned, empty for now)
  
• The third logical partition is Ubuntu (at the moment the bootloader has been cut out by the installer of the seven, a clean installation of 15.10 is planned)
  

Problem:
When installing Windows 7, it writes its bootloader to the Windows XP partition, as a result, after installing Ubuntu, as far as I remember, two menu levels are obtained (GRUB Linux / Windows, then NTLDR Windows XP / Windows 7), and when restoring the XP partition with image made before installing Win 7, the Win 7 bootloader is lost.
Task: to make sure that the bootloader of each version of Windows lives exclusively within its own partition, completely transferring the task of choosing which one to boot from to GRUB.
Help plz. Thanks in advance.

Answer 1

EasyBCD - a handy program with a guy for taxiing the loader.
And yes, you will not be able to scatter a bunch of loaders on different disks / volumes. More precisely, you can scatter, of course, but only the one in the active section will work. Therefore, different operating systems conflict, they write the bootloader to the active partition, sometimes rubbing each other.
adminland.ru/blog/sistemnyy-i-zagruzochnyy-razdely
Although you can switch sections on the fly, there was some kind of console tool from Acronis.