Grrrr. This error box has recently started appearing. My pc is 18 months old running Win7. This error box seems to appear every time I go to either Google or Bing (not tried any others). I've tried disabling all 'add-ons' as suggested in another mag, but not yet 're-setting' IE. I believe I have IE11 and this error box seems to coincide with a Windows update around the same time. Is there a cure please? I really don't want to change my browser.
Thanks for your patience. Avast did say that a restart should remove the last traces, but I've just tried your suggestion to tap F8 after hitting the Esc button when Select Boot Device box appeared but nothing happened at all. I pressed Esc again and Windows loaded normally. I'll definitely try to downgrade the AVG as the pop-up notifications are getting annoying now.
I went into 'Safe Mode' using msconfig but didn't find Avast anywhere, either in the Start menu list or Control Panels Uninstall list. So is there a separate 'Uninstall Utility' that you've previously mentioned? Also I successfully downgraded AVG in about 2 mins. Excellent.
"...So is there a separate 'Uninstall Utility' that you've previously mentioned?"
Yes, it's the tool from Avast that I mentioned before - here's the link again. Make sure you download it and save it before going into Safe Mode. When you're in Safe Mode, double-click on the avastclear icon in the location where you saved that file.
PS: Despite what it says in the instructions, the utility actually offers to boot into Safe Mode automatically - I wish I'd spotted that sooner.
Yippee!! It did exactly as you said. I 'Saved' the download instead of 'Run'. Scarily (for me) the box had Avast hi-lighted with a subsection below for adding a 'path' to other stuff to remove. I left it alone when I realised I could possibly remove entire drives. Should I keep the AvastClear file that's now in my 'downloads' folder, or delete it?