windows update Feature update to Windows 10, version 2004 problem

[timetraveler]

when I update Feature update to Windows 10, version 2004 on release preview I get error 'windows cannot be installed because this pc has an unsupported disk layout for uefi.  then run into other problems.

 

I have dual boot release preview and fast ring on separate hard drive.  now I tried to reset bios for UEFI error.  then lost dual boot GUI boot loader.  both drive lost mbr, cannot access. 

 

I tried to use windows install disc, cmd, bootre /mbr, bootrec /fixboot, bootrec/rebuildbcd. still cannot boot into both installations,  no GUI boot loarder

 

 

Then I used windows to go run same commands.  the boot GUI built into the usb drive.  I can go to bios find windows bootloader usb,  it can go into both installation windows now.  but when I unplug the usb. GUI bootloader disappear,  cannot boot into both windows again.

 

how to solve those problems ?

[Jameswalter]

If you are unable to update your display drivers, you will need to turn Memory integrity off to be able to update to Windows 10, version 2004. Go to the Core isolation page in Windows Security. Turn the Memory integrity setting Off. You will need to restart your computer for the changes to take effect.