My Tech Notes: Fix Windows 10 Update KB5034441 Error 0x80070643

The reason KB5034441 failed to install with error 0x80070643 is that there is not sufficient space in WinRE recovery partition. The solution is:

Manually resize your WinRE recovery partition by 250 MB

Open a Command Prompt window (cmd) as Administrator.
Check WindowsRE status:
```
reagentc /info
```
If the WinRE is installed, there should be a “Windows RE location” with a path to the WinRE directory. An example is, “Windows RE location: [file://%3f/GLOBALROOT/device/harddisk0/partition4/Recovery/WindowsRE]\\?\GLOBALROOT\device\harddisk0\partition4\Recovery\WindowsRE.” Here, the number after “harddisk” and “partition” is the index of the disk and partition WinRE is on.
Disable the WindowsRE:
```
reagentc /disable
```
Shrink the OS partition and prepare the disk for a new recovery partition.
- Run
```
diskpart
```
- Run
```
list disk
```
- Select the OS disk (This should be the same disk index as WinRE.), run
```
sel disk OS_DISK_INDEX
```
  e.g.
```
sel disk 0
```
  if disk 0 is the OS disk.
- Find the OS Primary partition, run
```
list part
```
- Select the OS Primary partition, run
```
sel part OS_PARTITION_INDEX
```
- Shrink the OS Primary partition by 250MB, run
```
shrink desired=250 minimum=250
```
Delete the WinRE recovery partition
- In diskpart, select WinRE partition, run
```
sel part WinRE_PARTITION_INDEX
```
- Delete the WinRE partition, run
```
delete partition override
```
Create a new WinRE recovery partition.
- First, check if the disk partition style is a GUID Partition Table (GPT) or a Master Boot Record (MBR). To do that, run
```
list disk
```
  . Check if there is an asterisk character (*) in the “Gpt” column. If there is an asterisk character (*), then the drive is GPT. Otherwise, the drive is MBR.
- If your disk is GPT, run
```
create partition primary id=de94bba4-06d1-4d40-a16a-bfd50179d6ac
```
  followed by the command
```
gpt attributes =0x8000000000000001
```
- If your disk is MBR, run
```
create partition primary id=27
```
Format the new WinRE recovery partition, run
```
format quick fs=ntfs label="Windows RE tools"
```
To confirm that the WinRE partition is created, run
```
list vol
```
Exit from diskpart, run
```
exit
```
Re-enable WinRE, run
```
reagentc /enable
```
To confirm where WinRE is installed, run
```
reagentc /info
```

Now you should be able to install KB5034441 via Windows Update

My Tech Notes

Fix Windows 10 Update KB5034441 Error 0x80070643

Manually resize your WinRE recovery partition by 250 MB

See also

No comments:

Post a Comment