Deleting AVG files and components

Hello Ann.
We're sorry for the inconvenience caused.
We'd also request you to download and run AVG Remover tool to detect and remove remnants from older version AVG.
Click this link for steps to download and run AVG Remover.
Also, check your hard disk for 'avgui.exe' and 'avastui.exe' files, remove if found and restart your PC.
Now try to update Windows and check if that works.

Could someone please help?  I downloaded an AVG Antivirus Trial version a while ago now and then decided to uninstall the programme. Unfortunately there seems to be files or components still left on my PC (Windows 10 O/S),  These are stopping me from Updating my computer and I have been told by someone in the Microsoft Community to: go into Regedit/Computer/Find/AVG and delete anything relating to AVG.  I have done this today and I thought this had the sorted the problem out - but no, I'm still unable to update my computer.  I did try the AGV Clean (?) to see if I could clear out all files that way but that failed as well.  Any ideas?

Hello Ann.
We're sorry for the inconvenience caused.
We'd also request you to download and run AVG Remover tool to detect and remove remnants from older version AVG.
Click this link for steps to download and run AVG Remover.
Also, check your hard disk for 'avgui.exe' and 'avastui.exe' files, remove if found and restart your PC.
Now try to update Windows and check if that works.