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

JohnTimmermans1, I see nothing wrong in what you show...

Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Recovery           300 MB  1024 KB   <<<Old recovery partition probably empty now
  Partition 2    System              99 MB   301 MB     <<<EFI System partition
  Partition 3    Reserved           128 MB   400 MB   <<<MSR (Microsoft Reserved) partition
  Partition 4    Primary            231 GB   528 MB     <<<Windows (C:)
  Partition 5    Recovery           450 MB   232 GB    <<<New Recovery partition (comes with new Windows)

And the Detail Part of EFI looks fine...

Partition 2
Type    : c12a7328-f81f-11d2-ba4b-00a0c93ec93b                 <<<That's correct

* Volume 2     FAT32  Partition     99 MB  Healthy    System    <<<That's correct

Your problem must lie elsewhere. Do you have another drive connected that has another EFI? Multiple EFI  partitions (or even System Reserved partitions) could cause confusion when Windows reboots, especially a reboot during an update.

tcoury, I'm really unsure what to make of what I see. It looks like yours once was a UEFI install, but it has changed to a Legacy install...

(a) There is a 16 MB unallocated space that might once have been an MSR (Microsoft Reserved) partition belonging to UEFI. I'm thinking maybe the partition style was changed from GPT (for UEFI) to MBR (for Legacy) & the space became unallocated.

(b) Partition 2 has a partition type that belongs to Legacy yet its label is ESP -- EFI System Partition. In a Legacy install, that partition normally is labelled "System Reserved", & I think it would be NTFS. FAT32 is for EFI. But I don't think yours is being used anyway because it isn't Active. Your Windows (C:) partition is the Active one., meaning it doubles as the System partition & has the boot files.

(c) I don't know what that 16 KB partition is (in DiskPart), maybe it has to do with BitLocker or some 3rd-party app. Normally, they would write into the System Reserved partition.

If it were me, I'd want to do a clean install & make it a UEFI install. That will get all the partitions right. Want instructions? What you've got now looks like a high speed collision between a UEFI & a Legacy install, but the Legacy was travelling faster,

Hi

This computer has only one HD, it is an old Toshiba laptop that I set up for my wife.

Must have come with Win7 or such but I installed Win 10 about 10 months ago. No worries.

Windows Update fails with Security Update for Windows 10 Version 1909 KB4535680 - Error 0x800f0922

A search got me to this thread. I have followed everyone's saga - fascinating!!

Seems the problem might be 2 EFI System Partitions? One had the right GUID the other not (can't remember which one before I set it "right").

Any step by step suggestions how I can clean it up? Curious to know how it might be fixed. Worst comes to worst I'll reinstall Windows :-(.

TIA

DISKPART> List Part

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    System             529 MB    16 MB
  Partition 2    System             100 MB   545 MB
  Partition 3    Reserved            16 MB   645 MB
  Partition 4    Primary            476 GB   661 MB
DISKPART> Select Part 1
Partition 1 is now the selected partition.
DISKPART> Detail Part
Partition 1
Type    : c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Hidden  : Yes
Required: Yes
Attrib  : 0X8000000000000001
Offset in Bytes: 16777216
  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 2         Recovery     NTFS   Partition    529 MB  Healthy    Hidden
DISKPART> Select Part 2
Partition 2 is now the selected partition.
DISKPART> Detail Part
Partition 2
Type    : c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Hidden  : Yes
Required: No
Attrib  : 0X8000000000000000
Offset in Bytes: 571473920
  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 3                      FAT32  Partition    100 MB  Healthy    System

PS I'm using her account to access the forum.

James R

(1) RobynR1, your Recovery partition has picked up the partition type of an EFI partition...

Partition ###       Type           Size     Offset
  -------------  ---------- ----------   --------
  Partition 1    System       529 MB     16 MB    <<<Recovery -- but with wrong partition ID
  Partition 2    System       100 MB   545 MB    <<<EFI
  Partition 3    Reserved      16 MB   645 MB    <<<MSR
  Partition 4    Primary      476 GB    661 MB    <<<Windows

Let us see a bit more. At an Administrator Command Prompt, enter...

BCDEdit  /Enum  All    <<<Shows location of EFI (that was used to boot) & Recovery

ReagentC  /Info          <<<Also shows location of the Recovery partition

DiskPart                   <<<Enter DiskPart

Select  Disk  0          <<<Focus on Disk 0

Select  Part  1           <<<Select the Recovery partition

Assign  Letter=R      <<<Give it letter R

Exit                           <<<Leave DiskPart

DIR  R:\  /a               <<<Let's see the root of the Recovery partition

                                        I want to be sure worse wasn't done to it

DiskPart

Select  Disk  0

Select  Part  1

Remove  Letter=R    <<<Remove the letter R

Exit

Use Ctrl-A & Ctrl-C to copy, then post it to us.

(2) Once we determine that's the only problem, here is how to give it a Recovery ID...

DiskPart                                                                                       <<<Enter DiskPart

Select  Disk  0                                                                              <<<Select disk 0

Select  Part  1                                                                               <<<Select the Recovery partition

Detail  Part                                                                                   <<<Show improper ID

Set ID=de94bba4-06d1-4d40-a16a-bfd50179d6ac  Override    <<<Give it proper ID

Detail  Part                                                                                   <<<Show proper ID

Exit                                                                                               <<<Leave DiskPart

Best reboot afterward to be sure it registers.