Windows 10: Cannot access Windows 10 Disk at all

I've been dual booting Windows 7 and Windows 10 (on separate disks) for a few months now, and suddenly I was not able to boot into windows 10 at all.
I've tried system restore from my emergency flash drive and at first it said there were no restore points and now it simply doesn't open. (I know there are restore points because I made them!) When I opened System Restore in Windows 7 it said that Windows 10 was not being "protected" (odd -- I never turned it off...), so I turned on System restore for windows 10 but it didn't help.


I've also tried all the other fixes suggested on this forum with no success, so I'm just going to go ahead and reinstall windows 10.


Here's my problem –I would like to retrieve some data from the Windows 10 disk first and it seems that I cannot access it at all.


Using Windows Explorer to access the disk, I get the error message " F:\ is not accessible. Access is denied"
Here's a picture of how the drives look in Explorer: (no blue "size" bar)




When I click "System Properties" for drive F I get the following graphic information: (0 bytes all around...)




And here's a picture from Disk Management in control panel: (This looks a bit more real...)




Any ideas on what might have happened and how I might regain access to that disk?
Thanks,
Philip

:)

 

Cannot access settings at all.

What happens when you try to access Settings?

Press Windows key + I

You could also try performing a repair upgrade:

Step 1:
How to download official Windows 10 ISO files

Step 2: How
to: perform a repair upgrade using the Windows 10 ISO file

 

Cannot access settings at all.

* Original title: settings

Cannot access settings at all. please help

 

Hi, just a point on losing restore points when dual booting- this is a well-known and long reported issue from at least XP and Vista on.
Here see e.g.
Dual boot with Windows 7 deletes Windows 10 restore points - Windows 10 Forums

... which is incidental to your main issue of course.

I've seen a number of threads with similar situations where the disk structure is visible but access denied- can't recall there being a solution off-hand, but you may wish to look whilst awaiting an informed answer.

Personally I might suggest a live boot disk, perhaps with data recovery software.

(Nice to see Win 7 screenshots!)