Windows 10: seeing drives in dual boot win 7/10

Thanks in advance for any thoughts,
I have a dualboot win 7/10 machine, each system is on it's own ssd, programs are in 2 different folders on a 3rd ssd,all is working fine except:
when i'm in 7 I can see the 10 drive which is labeled "E" but i cannot see 7 which is labeled "C" from 10. Is this because both drives are labeled as "C" when I am in the respective systems?
Can I safely change the letter for 7? I can see the 7 from 10 in disk management
Thanks

:)

 

loading a Win 10 ISO image on a separate partition, it's loaded, but changed the drive letters, so no more dual boot!!

Hi, I followed the instructions of a Community MS engineer and loaded a Win 10 ISO image onto a separate partition on my Win 7 Pro laptop, to dual-boot.

The image - from his link - loaded, but it's changed the partition drive letters.

Win 7 is now on D: - was on B: - and Win 10 is now on C: and the dual-boot on start-up has gone!

The folders for Win 7 are all still on drive D;, but this will now not boot

Can anyone help, please?

 

How to move Thunderbird from Win 7 to Win 10?

I have Win 7 on one hard drive and Win 10 on another drive. I would like to transfer all of my emails, addresses etc. from the Win 7 drive to Thunderbird (a separate version is installed on each) my Win 10 drive.

If I am successful, I plan on deleting the Win 7 version.

This is not a dual boot version, I have to switch the boot version in my bios first. Would like to set up dual boot, but, I will tackle that once the Thunderbird problem is completed first.

Thanks in advance for any suggestions.

 

When you dual boot, the OS you boot to is always assigned C:, and the other a different letter.

If you cannot see the drive with Windows 7 from Windows 10, it is a driver related issue. Check your SATA drivers from device management are up to date.

 

In 10, right-click *Start Disk Management

You may need to assign a drive letter to the Windows 7 SSD.

Drive letters are purely assigned at installation time in the Registry of the OS you are running, unless you install the second dualboot OSsystem from within the first.

So say you install each OS from a booted DVD or USB they will each have C:\ Windows assignments for the boot drive. However if You install Windows 7 first, then install windows 10 on the second USB from Windows 7 it will take another drive letter, like E:\ , since C:\ is already used by Windows 7.