Windows 10: Dual boot w7/w10 , win10 partition raw in win7

hello,

I have dual boot systems win7 and win10.

Win 10 is primary system on SSD Disk0 with 2 partitions, boot/system and recovery. Bios MBR. (not uefi)
Win 7 is on Disk3 part1 , all is working fine , both systems boot via win10 startup menu.
Disks 1 and 2 are GPT raid0, data only. (disk1 3tb , disk2 1tb)

disk0 1. win10/boot/sytem 2.recovery (mbr/ssd)
disk1 1. raida500gb 2. simple (gpt)
disk2 1.raidb500gb 2. simple 3.simple (gpt)
disk3 1.win7sys 2. primary 3. primary

Recently (since some sep. win7 kb update, but may not be the reason), my win10 partition become inaccessible in win7 system and is seen as RAW in disk manager and diskpart., BUT!, it is seen normal ntfs in Minitool part manager and other partition software.??

I've tried full shutdown/restart if it were fast-startup the reason in win10 , but to no avail.

Repeat, both systems function normally (it seems), BCD is valid in win10 , but of course it doesn't work in win7 anymore because db is not accessible.

What can be the reason, any ideas?

Thanks

:)

 

Upgrading possible ? Dual boot (XP-32 / W7-64) to (XP-32 / W10-64)

Hi everybody,

I have a dual boot PC with Windows XP (32 bits) and Windows 7 (64 bits), both installed on a 500 Go SSD.

I have a 500 Go HDD for My documents, other data and games. Having two drives on a PC didn't cause any problem for upgrading W7 on another PC
but there was no other OS.

My 2nd PC is declared to be W10 compatible.

The active partition is the one with XP. So the one with W7 is
not active.

My two questions :

• Will the upgrade process be able to upgrade W7 even if it is not the active partition ?
• Will XP and the dual boot persist ?

Any experience with dual boot and W10 upgrading ?

 

Is it safe to increase the size of my System Reserved partition in a Win7/Win10 dual boot?

I have Windows 7 and Windows 10 in a dual-boot state (Win10 installed after Win7, both on different drives); but my Win7 installation does not create a separate
System Reserved partition. I assume that all Win10 files which are stored in a
System Reserved partition are stored in the System Reserved partition created by Win7...

...But there is one problem: As a stand-alone OS, Win10 creates a 500MB
System Reserved partition, and my Win7 System Reserved partition is only 100MB, and my dual-boot Win10 installation is using or sharing the Win7
System Reserved partition, since it was created first.

Here's the dual-boot screen:





Here's the dual-boot setup in Win10:





And here is the dual-boot setup in Win7:





Given a test run, I discovered that, with Win7 and Win10 on your machine, you can't have 2 separate
System Reserved partitions (one on the Win7 drive and one on the Win10 drive), because upon boot of one OS or the other, errors, blue screens and the need to repeatedly check the disks for consistency have the potential to corrupt either one OS or
both.

Since my assumption is that the Win7/Win10 dual-boot setup shares the same
System Reserved partition, is it safe to increase the size of this partition to 600MB (100MB for Win7 + 500MB for Win10), especially with the possibility that Win10 may dump enough files into this partition to completely fill or overwhelm the original
100MB that was created with the Win7 installation? I have Acronis Disk Director 12, which can resize any volume, before or after the OS partition.

 

Win7 / Win10 dual boot only boots to Win10

I have a home build machine with a dual partition for booting either Win7 or Win10 selectable.

The order was Win7 followed by Win10 in the menu.

The machine would always display a screen where I could select either Win7 or Win 10. If I didn't select in time the default was the first in the menu which was Win7

Starting this evening the machine no longer displays the selection menu but instead boots immediately and directly to Win10.

What's wrong?

How can I fix this so it works the original way?