Error 0x800f0922 for 2020-01 Cumulative Update for Windows 10 Version 1909 for x64-based Systems (KB4532695)

On the 20 GB par is running Linux. This ist par 5. could that be the answer to (1) (a)?

(3) So its Disk 1 which is selected. 

Your Disk Management (DM) matches DiskPart in what it says is the nutty order of those partitions, (keeping in mind that DM never shows the MSR). So your Linux partition is partition 5 but it precedes partition 4 on the disk. That's scary enough. But, on top of that, DM says it is Disk 0 that holds those partitions where DiskPart says it is Disk 1. (You've got a Disk 1, but it doesn't have those partitions.)

DISKPART> sel disk 1                                                  <<<Disk 1 was selected

Datenträger 1 ist jetzt der gewählte Datenträger.

DISKPART> list par                                                        <<<And here are the wacky partitions

  Partition ###  Typ               Größe    Offset

  -------------  ----------------  -------  -------

  Partition 1    System             100 MB  1024 KB             <<<EFI

  Partition 2    Reserviert          16 MB   101 MB              <<<MSR

  Partition 3    Primär             203 GB   117 MB               <<<Windows

  Partition 5    Unbekannt           19 GB   203 GB             <<<Not a known partition type - Linux

* Partition 4    Wiederherstellun   521 MB   223 GB        <<<Recovery

Your BCDEdit & ReagentC look OK to me. The latter agrees with DM that the partitions are on Disk 0.

Did you say you tried to delete that Linux partition. Are you still willing to do so? It's in a nice enough spot that you will be able to extend C:partition into the 19 GB of freed space. DM can do that, after you delete the partition in DiskPart. Let's see this...

DiskPart

List  Vol

List  Disk

Select  Disk  0

List  Part

Select  Disk  1

List  Part

Select  Disk  2

List  Part

Exit

It's worth one more look before we do the delete.

BIOS probably would continue to work as is, but I'd want to remove the Linux entries. Also, I must admit, I can't quite tell whether it is booting to the Windows Boot Manager or directly to the disk (whatever that is)...

I don't think mine names the disk, but just says "Windows Boot Manager". If you can get it like that, it would be best. Yours looks like a list of disks, but really they are all the same disk which likely is Disk 0. I suppose the bottom 2 go to the same Linux partition 5. The top one goes to EFI partition 1, I guess.

Let's see the whole BCD:     BCDEdit  /Enum  All

Here is Disk Manager:

DISKPART> List  Vol

---

  Volume ###  Bst  Bezeichnung  DS     Typ         Größe    Status     Info

  ----------  ---  -----------  -----  ----------  -------  ---------  --------

  Volume 0     C                NTFS   Partition    203 GB  Fehlerfrei  Startpar

  Volume 1                      NTFS   Partition    521 MB  Fehlerfrei

  Volume 2                      FAT32  Partition    100 MB  Fehlerfre  System

  Volume 3     D   Volume       NTFS   Partition    931 GB  Fehlerfrei

  Volume 4     E   Volume       NTFS   Partition    447 GB  Fehlerfrei

---

DISKPART>

---

DISKPART> List  Disk

---

  Datenträger ###  Status         Größe    Frei     Dyn  GPT

  ---------------  -------------  -------  -------  ---  ---

  Datenträger 0    Online          223 GB  1024 KB        *

  Datenträger 1    Online          931 GB  1024 KB        *

  Datenträger 2    Online          447 GB  1024 KB        *

---

DISKPART>

---

DISKPART> Select  Disk  0

---

Datenträger 0 ist jetzt der gewählte Datenträger.

---

DISKPART>

---

DISKPART> List  Part

---

  Partition ###  Typ               Größe    Offset

  -------------  ----------------  -------  -------

  Partition 1    System             100 MB  1024 KB

  Partition 2    Reserviert          16 MB   101 MB

  Partition 3    Primär             203 GB   117 MB

  Partition 5    Unbekannt           19 GB   203 GB

  Partition 4    Wiederherstellun   521 MB   223 GB

---

DISKPART>

---

DISKPART> Select  Disk  1

---

Datenträger 1 ist jetzt der gewählte Datenträger.

---

DISKPART>

---

DISKPART> List  Part

---

  Partition ###  Typ               Größe    Offset

  -------------  ----------------  -------  -------

  Partition 1    Reserviert          15 MB    17 KB

  Partition 2    Primär             931 GB    16 MB

---

DISKPART>

---

DISKPART> Select  Disk  2

---

Datenträger 2 ist jetzt der gewählte Datenträger.

---

DISKPART>

---

DISKPART> List  Part

---

  Partition ###  Typ               Größe    Offset

  -------------  ----------------  -------  -------

  Partition 1    Reserviert          15 MB    17 KB

  Partition 2    Primär             447 GB    16 MB

---

DISKPART>

---

DISKPART> Exit

And BCD:

C:\WINDOWS\system32>BCDEdit  /Enum  All

Start-Manager für Firmware

---

Bezeichner              {fwbootmgr}

displayorder            {bootmgr}

                        {bc3fa510-fe92-11ea-b227-806e6f6e6963}

                        {bc3fa50f-fe92-11ea-b227-806e6f6e6963}

                        {7c737fc1-dbb4-11ea-8708-836fcd478fb1}

timeout                 1

Windows-Start-Manager

---

Bezeichner              {bootmgr}

device                  partition=\Device\HarddiskVolume1

path                    \EFI\MICROSOFT\BOOT\BOOTMGFW.EFI

description             Windows Boot Manager

locale                  de-DE

inherit                 {globalsettings}

default                 {current}

resumeobject            {80bb344c-fc52-11ea-b786-dae81f622fe9}

displayorder            {current}

toolsdisplayorder       {memdiag}

timeout                 30

Firmwareanwendung (101fffff)

---

Bezeichner              {7c737fc1-dbb4-11ea-8708-836fcd478fb1}

description             Hard Drive

Firmwareanwendung (101fffff)

---

Bezeichner              {bc3fa50f-fe92-11ea-b227-806e6f6e6963}

device                  partition=\Device\HarddiskVolume1

path                    \EFI\UBUNTU\SHIMX64.EFI

description             ubuntu

Firmwareanwendung (101fffff)

---

Bezeichner              {bc3fa510-fe92-11ea-b227-806e6f6e6963}

device                  partition=\Device\HarddiskVolume1

path                    \EFI\UBUNTU\GRUBX64.EFI

description             ubuntu

Windows-Startladeprogramm

---

Bezeichner              {current}

device                  partition=C:

path                    \WINDOWS\system32\winload.efi

description             Windows 10

locale                  de-DE

inherit                 {bootloadersettings}

recoverysequence        {ae3879e3-fb7f-11ea-bd25-7085c25d426a}

displaymessageoverride  Recovery

recoveryenabled         Yes

isolatedcontext         Yes

allowedinmemorysettings 0x15000075

osdevice                partition=C:

systemroot              \WINDOWS

resumeobject            {80bb344c-fc52-11ea-b786-dae81f622fe9}

nx                      OptIn

bootmenupolicy          Standard

Windows-Startladeprogramm

---

Bezeichner              {ae3879e3-fb7f-11ea-bd25-7085c25d426a}

device                  ramdisk=[\Device\HarddiskVolume5]\Recovery\WindowsRE\Winre.wim,{ae3879e4-fb7f-11ea-bd25-7085c25d426a}

path                    \windows\system32\winload.efi

description             Windows Recovery Environment

locale                  de-DE

inherit                 {bootloadersettings}

displaymessage          Recovery

displaymessageoverride  PushButtonReset

osdevice                ramdisk=[\Device\HarddiskVolume5]\Recovery\WindowsRE\Winre.wim,{ae3879e4-fb7f-11ea-bd25-7085c25d426a}

systemroot              \windows

nx                      OptIn

bootmenupolicy          Standard

winpe                   Yes

Wiederaufnahme aus dem Ruhezustand

---

Bezeichner              {80bb344c-fc52-11ea-b786-dae81f622fe9}

device                  partition=C:

path                    \WINDOWS\system32\winresume.efi

description             Windows Resume Application

locale                  de-DE

inherit                 {resumeloadersettings}

recoverysequence        {ae3879e3-fb7f-11ea-bd25-7085c25d426a}

recoveryenabled         Yes

isolatedcontext         Yes

allowedinmemorysettings 0x15000075

filedevice              partition=C:

filepath                \hiberfil.sys

bootmenupolicy          Standard

debugoptionenabled      No

Windows-Speichertestprogramm

---

Bezeichner              {memdiag}

device                  partition=\Device\HarddiskVolume1

path                    \EFI\Microsoft\Boot\memtest.efi

description             Windows-Speicherdiagnose

locale                  de-DE

inherit                 {globalsettings}

badmemoryaccess         Yes

EMS-Einstellungen

---

Bezeichner              {emssettings}

bootems                 No

Debuggereinstellungen

---

Bezeichner              {dbgsettings}

debugtype               Local

RAM-Defekte

---

Bezeichner              {badmemory}

Globale Einstellungen

---

Bezeichner              {globalsettings}

inherit                 {dbgsettings}

                        {emssettings}

                        {badmemory}

Startladeprogramm-Einstellungen

---

Bezeichner              {bootloadersettings}

inherit                 {globalsettings}

                        {hypervisorsettings}

Hypervisoreinstellungen

---

Bezeichner              {hypervisorsettings}

hypervisordebugtype     Serial

hypervisordebugport     1

hypervisorbaudrate      115200

Einstellungen zur Ladeprogrammfortsetzung

---

Bezeichner              {resumeloadersettings}

inherit                 {globalsettings}

Geräteoptionen

---

Bezeichner              {ae3879e4-fb7f-11ea-bd25-7085c25d426a}

description             Windows Recovery

ramdisksdidevice        partition=\Device\HarddiskVolume5

ramdisksdipath          \Recovery\WindowsRE\boot.sdi

Thanks for your help

(1) So now DiskPart does agree that your Windows partitions & Ubuntu are on Disk 0. That's great. Sadly, the positions of partitions 4 & 5 are still switched on the disk. That doesn't seem natural to me. And within the BCD it is saying the Recovery partition (Shift+Restart goes there) is on Partition 5...

Geräteoptionen

---

Bezeichner             {ae3879e4-fb7f-11ea-bd25-7085c25d426a}

description             Windows Recovery

ramdisksdidevice   partition=\Device\HarddiskVolume5         <<<Partition 5

ramdisksdipath      \Recovery\WindowsRE\boot.sdi

That's its correct position on Disk 0, but it everywhere else is known as ...4. Even ReagentC calls it 4.

(2) I like seeing {bootmgr} on top here...

Start-Manager für Firmware

---

Bezeichner       {fwbootmgr}

displayorder    {bootmgr}                                                            <<<Windows Boot Manager

                        {bc3fa510-fe92-11ea-b227-806e6f6e6963}        <<<Direct to Ubuntu

                        {bc3fa50f-fe92-11ea-b227-806e6f6e6963}         <<<Direct to Ubuntu (same one I guess)

                        {7c737fc1-dbb4-11ea-8708-836fcd478fb1}        <<<Direct to "Hard Drive"

timeout           1

I think Windows likes that when it needs to do a reboot. It wants {Bootmgr} to determine which OS to boot. Unfortunately, there is no boot loader entry for Ubuntu; so, that never will be a choice. You can only direct-boot to Ubuntu. I don't know why you've got two entries for Ubuntu when I see only one partition -- weird partition 5.

(3) What happens when you boot to Ubuntu? Is there an uninstall procedure for it? Looks like it's put a folder into EFI...

Firmwareanwendung (101fffff)

---

Bezeichner         {bc3fa50f-fe92-11ea-b227-806e6f6e6963}

device                partition=\Device\HarddiskVolume1

path                   \EFI\UBUNTU\SHIMX64.EFI                 <<<Ubuntu boot loader on EFI

description        ubuntu

I think I would uninstall it, delete partition 5, then reinstall it if still wanted.