Last week I followed the prompt in the system tray to update Avast and after the required re-boot noticed that 6 days of data and emails (in my Thunderbird email client) was gone. It was as if the computer spontaneously restored to an earlier point without my permission. Lucky the emails still exist on the webmail (Gmail) but what a pain in the neck. No more updates for me without backing up documents and email folders immediately prior. I have Windows 7 (64 bit)
Very strange :o i also run Thunderbird on the same system and avast has never modified or deleted anything with TB, did you happen to have TB open while doing the upgrade and reboot ?
Re-running TB should have brought your mail back in again.
It wasn’t just TB. I know I had closed it before the reboot and probably before punching the update button. I had rearranged my desktop and any file downloaded during that period was gone. Fortunately there weren’t many to replace. As for the emails TB thinks those emails on the Gmail server have already been downloaded, so it’s only retrieving new emails. It’s kinda like my computer was in one of those time-glitch episodes of Star Trek and those 6 days just vanished. Possibly the problem was caused by FireFox which had updated to FF 11 earlier that day. Now it’s back to 10.something and hasn’t yet told me that an update is available or been forced. It’s been 5 days since the big hiccup.