Onedrive seems to have created its own drive G partition and moved my previous drive G partition to drive L

(1) As was said earlier, your Disk Management is fine. It is normal for it not to show the secret MSR (Microsoft Reserved) partition. Yours is partition 1 on Disk 0. That pushes all the others up...

DISKPART> list part

Partition ### Type Size Offset

Partition 1 Reserved 128 MB 17 KB <<<MSR partition -- Disk 0, Partition 1

Partition 2 System 100 MB 129 MB <<<EFI -- Disk 0, Partition 2

Partition 3 Primary 930 GB 229 MB <<<Windows (C:)

Partition 4 Recovery 627 MB 930 GB <<<Recovery -- Disk 0. Partition 4

(2) You have proven your DVD will work properly when booted through the BIOS Boot Menu which is F8 for you. That is good. So, memorize how to do a /Import there (if/when necessary), which is...

DiskPart <<<Enter DiskPart

List Vol <<<List the volumes & their letters

Exit <<<Exit DiskPart

=== You should recognize the Windows volume by its label or size ===

=== Note its letter which may not be C: in this environment ===

=== Use that letter instead of X: in the following command ===

BCDEdit /Import X:\BU\BCD_Backup /Clean <<<Restore the backup BCD

Close the Command Prompt, & click "Continue" to return to Windows.

(3) You made a typo with...

BCDEdit /Set {fwbootmgr} Displayorder {bootmgr} /Addfirst

Instead of {bootmgr}, you entered a second {fw...}. I'm surprised there wasn't an error message. It did nothing. It did not add {bootmgr} to the top. Therefore, it never went to {bootmgr}. And that probably was a good thing, because you did enter the following correctly, but it didn't work (though it said it did)...

BCDEdit /Set {bootmgr} Device partition=\Device\HarddiskVolume2

Instead, it left the value at "unknown". So, it would have been a failed boot, (& you'd have had to do the /Import). But you did get the Path from the other command...

I don't know what to make of that. It's spooky. But let's try it booted to Windows at an Administrator Command Prompt...

Type "CMD" into Search, & click "Run as Administrator".

BCDEdit /Enum {bootmgr} <<<Show old {bootmgr}

BCDEdit /Set {bootmgr} Device partition=\Device\HarddiskVolume2

BCDEdit /Enum {bootmgr} <<<Show new {bootmgr}

If the Device is there & the Path is still there, then do this (otherwise don't do it)...

BCDEdit /Enum {fwbootmgr} <<<Show current {fwbootmgr}

BCDEdit /Set {fwbootmgr} Displayorder {bootmgr} /Addfirst

BCDEdit /Enum {fwbootmgr} <<<Show new {fwbootmgr}

That should add {bootmgr} to the top of the Displayorder list, meaning the next boot will go there. If all looks good, try the reboot. If it fails to boot, do the /Import using the DVD if necessary. (But if it gives you access to the internal recovery environment, use that.)

We may not need to do the /RebuildBCD. If this much works, we probably can fix your recovery environment entries in a similar manner using ReagentC. Then Shift+Restart will get you there.

(1) Here are your partitions on Disk 0...

Partition ### Type Size Offset

Partition 1 Reserved 128 MB 17 KB <<<MSR (Microsoft Reserved)

Partition 2 System 100 MB 129 MB <<<EFI System partition

Partition 3 Primary 930 GB 229 MB <<<Windows (C:)

Partition 4 Recovery 627 MB 930 GB <<<Recovery partition

The MSR doesn't show up in Disk Management by design. I'd rather it immediately precede Windows, but that's OK as is. The details of each is fine except for Recovery...

Partition 4

Type : de94bba4-06d1-4d40-a16a-bfd50179d6ac

Hidden : Yes

Required: No

Attrib : 0000000000000000

Offset in Bytes: 999546683392

Volume ### Ltr Label Fs Type Size Status Info

* Volume 4 G NTFS Partition 627 MB Healthy Hidden

The type code (GUID) is good. Required should be "yes". Let's remove the letter & set the Attrib properly...

DiskPart <<<Enter DiskPart

Select Disk 0 <<<Focus on Disk 0

Select Part 4 <<<Focus on partition 4 (Recovery)

Detail Part <<<Show the old details

Remove Letter=G <<<Remove letter G

GPT ATTRIBUTES=0x8000000000000001 <<<Set Attrib

Detail Part <<<Show the new details

Exit <<<Exit DiskPart

Notes:

0x8000000000000000 Prevents the partition from having a drive

                                  letter automatically assigned.

0x0000000000000001 Marks the partition as required.

After that, G: will no longer show up in File Explorer. Let's see a new picture of Disk Management to see whether it looks better for Recovery in the upper & lower panes.

(2) The Firmware Boot Manager in the BCD is a window to the BIOS Boot menu screen. Yours isn't set normally for a UEFI installation.,,

Firmware Boot Manager

identifier {fwbootmgr}

displayorder

{c4337ee6-11b0-11ec-ab4f-806e6f6e6963} <<<Direct boot to EFI

{c4337ee7-11b0-11ec-ab4f-806e6f6e6963} <<<Direct to a hard drive

{c4337ee8-11b0-11ec-ab4f-806e6f6e6963} <<<Also direct boot to EFI

{c4337ee3-11b0-11ec-ab4f-806e6f6e6963} <<<Boot to CD/DVD drive

timeout 0

It should instead boot to the Windows Boot Manager ({bootmgr}). You do have one in the BCD, but it is missing its device & path values. There is a lot amiss in your BCD. I'm thinking we should generate a new one altogether instead of tinkering with this one.

(a) Have you ever been in BIOS & altered the Boot Menu?

(b) Is BIOS set to boot in UEFI or Legacy mode? The missing {bootmgr} under Displayorder (above) has me wondering.

(1) Oops, I wanted Disk 0. Please repeat DiskPart for Disk 0...?...

DiskPart <<<Enter DiskPart

List Vol <<<List the Volumes

List Disk <<<List the Disks

Select Disk 0 <<<Focus on Disk 0

List Part <<<List the partition numbers on Disk 0

== For each partition number (x) enter the following two commands ==

Select Part x <<<Focus on partition x

Detail Part <<<Show partition info

== After that, exit DiskPart ==

Exit <<<Exit DiskPart

BCDEdit /Enum All <<<And let's see the BCD

(2) I see G:drive is there in your List Vol...

  Volume 4  **G**  NTFS Partition  627 MB  Healthy Hidden

It is the 627 MB partition appearing after C: in your Disk Management (DM). But it looks wrong in DM. It should look like mine...

With or without a letter on my Recovery partition, I get that designation (disk 0 partition 4) in the top pane. And the bottom is as circled. Neither the letter nor the label I put on it (WinRE 21H1) show up in the bottom pane. (I'm sure they used to in prior versions.) They only show in DiskPart & File Explorer now. And here is what mine looks like in DiskPart...

DISKPART> Detail Part

Partition 4

Type : de94bba4-06d1-4d40-a16a-bfd50179d6ac

Hidden : Yes

Required: Yes

Attrib : 0X8000000000000001

Offset in Bytes: 999313944576

Volume ### Ltr Label Fs Type Size Status Info

* Volume 3 WinRE 21H1 NTFS Partition 847 MB Healthy Hidden

We want to get the letter off yours, but most important will be the Type code & possibly the Attrib. I suspect your Type code has gone bad & must be made to match mine. Hopefully, that will get your Disk Management to match mine. Then, we need to activate the Recovery partition either using ReagentC (which may not work) or by putting the code for it directly into the BCD.

G:drive does look like a Recovery partition. Let's see whether it has its WinRE.wim...

(a) Type CMD into Search, & click "Run as Administrator".

(b) Enter the following commands...

DIR G:\ /a /s <<<List all folders & files on G:

ReagentC /Info <<<Show whether it is the Recovery partition officially

Something caused the letter to be grabbed away from the drive which had OneDrive. The OneDrive partition then took L: for its letter. A Recovery partition shouldn't have a letter, but it should show up in Disk Management with a designation like your EFI got (which is disk 0, partition 2). Let's see what the partitions look like in DiskPart. Enter the following commands into that same Command Prompt...

DiskPart <<<Enter DiskPart

List Vol <<<List the Volumes

List Disk <<<List the Disks

Select Disk 1 <<<Focus on Disk 1

List Part <<<List the partition numbers on Disk 1

== For each partition number (x) enter the following two commands ==

Select Part x <<<Focus on partition x

Detail Part <<<Show partition info

== After that, exit DiskPart ==

Exit <<<Exit DiskPart

Use Ctrl-A & Ctrl-C to copy it all, then paste it to us for examination.

Hi Greg…

Thank you for your response.  Much appreciated.

Before I go much further, can I ask 2 questions:

1. Can I post a word document with screen shots and explanations at an attachment to show the disk management screen shot and the windows explorer screen shot?
2. In your reply below you mentioned unlinking Onedrive and doing things within Onedrive.   I have uninstalled Onedrive from this PC so do I have to reinstall it? Will it then point to what was there before or have I really messed this up?

Thanks again for your help.

Cheers!

Garry