Win 10 update to 1903 failed - Error 0x80070005

[Michael529]

Thank you; I had missed that thread.

It seems that there is a problem upgrading with the AV fully in place and running normally. You posted in May so Avast have had at least 2 months to identify the cause of the problem. It also seems that some systems do not have the problem; Spec8472 reported that his ran the upgrade properly even with shields in place.

I recognise that upgrading Windows is a challenging activity but I would very much prefer to be able to do it without arguing with my virus scanner. It would be helpful if Avast responded to the problem, if not offering a solution now,at least in time for the 1909 upgrade. If not a solution, a warning would be helpful (and this may require reaching out to Microsoft).

[bob3160]

Thank you; I had missed that thread.

It seems that there is a problem upgrading with the AV fully in place and running normally. You posted in May so Avast have had at least 2 months to identify the cause of the problem. It also seems that some systems do not have the problem; Spec8472 reported that his ran the upgrade properly even with shields in place.

I recognise that upgrading Windows is a challenging activity but I would very much prefer to be able to do it without arguing with my virus scanner. It would be helpful if Avast responded to the problem, if not offering a solution now,at least in time for the 1909 upgrade. If not a solution, a warning would be helpful (and this may require reaching out to Microsoft).

Avast work very closely with Microsoft. As you can also see from the other threat, all of my systems are running v1903.

[jack840]

I tried to uninstall Avast free at least 10 times using Avast then different uninstall apps or utilities plus in safe mode. After uninstall I try to run 1903 update error states uninstall Avast.
Also just after a Avast uninstall I search C: for Avast, turns up a bunch of files. Looks like Avast uninstall leaves a lot behind. What to do next???

[Michael529]

At the time (see above) I was using Avast Free version 19.6 and did a simple uninstall from the "Apps & Features" menu, and rebooted/restarted the system before trying the Windows upgrade. The suggestion is that version 19.7 has cleared the problem that gave rise to Windows upgrade failing. Which version are you using?

Starting from where you are, I would be inclined to use uninstall again (if Avast is still there), and then use the Avastclear utility to make sure everything really has has gone. Then restart/reboot so you have a clean system before trying the Windows upgrade.

[DavidR]

I tried to uninstall Avast free at least 10 times using Avast then different uninstall apps or utilities plus in safe mode. After uninstall I try to run 1903 update error states uninstall Avast.
Also just after a Avast uninstall I search C: for Avast, turns up a bunch of files. Looks like Avast uninstall leaves a lot behind. What to do next???

You don't say what was left behind or where (some examples might help) ?

That said there have been some instances of this (reported in the forums) where avast files are found in windows.old (backup of your last OS version) and this has resulted in 1903 not being installed.  Ordinarily this should be removed by the OS 30 days after that particular OS update.

[bob3160]

Uninstall Avast
Download the Avast Uninstall Utility to your Deskto http://www.avast.com/en-gb/uninstall-utility
For Windows XP and Vista get the Avast Removal tool from here   https://install.avcdn.avast.com/iavs9x-xp/avastclear.exe
Uninstall Avast via control panel and follow the directions.
Run the Uninstall Utility and accept the reboot to safe mode
Once complete reboot your system.
A video to help you use the Avast Uninstall Utility is available at: https://youtu.be/KD8LO8OxmvM