Windows 10: Feature update from Windows 10 Pro v1909 keeps failing

I've been trying to update my Windows 10 installation from v1909 to 2004/20H2/21H1 since May 2020, but the update always fails.The update downloads and starts installing normallyOn the first reboot I get a blue screen with stop code "system thread exception not handled"I reboot and get "Attempting to recover installation" I might get another blue screen hereI reboot again and get "Undoing changes made to your computer", and it rolls back to v1909I've also tried updating with the Windows 10 Update Assistant, with the same results.After the last failed attempt yesterday, the problem is now com

:)

 

Windows Update keeps failing!

Yea, that was going to be my next suggestion, if "Safe mode" did not work... I didn't want to scare him just yet.. *Toast :toast: There is a new feature in Windows 8 that will let you go back to a fresh install with just a few clicks. It should help a lot non pro's to start over fresh. *Toast :toast: But this is no help to him.. *Toast :toast:

 

Problem updating Windows Surface Pro 4 with Windows 10 feature updates

Hi,

I have manage to install image for Microsoft Surface Pro 4 by going to https://support.microsoft.com/en-us/...erecoveryimage and download a recovery image for Microsoft Surface Pro 4.

What I did to reset your Surface from a USB recovery drive was:
Step 1: Make sure your Surface is turned off and plugged in (hold down the power
button for 30 seconds).
Step 2: Insert the USB recovery drive into the USB port on your Surface.
Step 3: Press and hold the volume-down button while you press and release the
power button on your Surface.
Step 4: When the Surface logo appears, release the volume button.
Step 5: When prompted, select the language and keyboard layout you want.
Step 6: Select Troubleshoot > Reset your PC.
If prompted for a recovery key, select Skip this drive at the bottom of the
screen.
Step 7: Select the target operating system you wish to reset. This
refers to the current operating system installed on your Surface.
Step 8: Select Yes, repartition the drives, and on the next page, select Next.
Step 9: Choose Just remove my files.
Step 10: Select Reset.
Surface restarts and the Surface logo displays while the reset process continues
(this can take a while).

This always fails and I have to do the below which continues installation.
Windows 10 Installation Media:

1. Insert the Media (DVD/USB) in your PC and restart.
2. Boot from the media.
3. Select Repair Your Computer.

Select Troubleshoot.

1. Choose Command Prompt from the menu:

Type in the command:
Diskpart
Type in the command:
List disk (Note which disk is your Boot drive number mine is 0)
Type in the command:
Sel disk 0
Type in the command:
List vol (Note which volume is the EFI partition mine is 4)
Type in the command:
Sel vol 4
Type in the command:
assign letter=V:
Type in the command:
Exit
Type in the command:
V:
After you have assigned a drive letter Using Diskpart You can format the EFI partition:
Example: if you assigned a letter V to the partition the command would be:
format V: /FS:FAT32
Type in the command:
bcdboot C:\windows /s V: /f UEFI


Now I have an issue that I cannot install Feature Updates. They keep failing to install.
Any ideas how to resolve issue?

 

Windows 10 fails to update


When you finish testing the Avast suggestion, make sure that you restart your machine.

Then if the issue persists, please return to the trouble shooting list in post# 89

I think there are three steps that remain; the WU troubleshooter, reset WU components, and manual WU reset.