[Imp]

Try puting show introduction to off.
With Avast to test
Either left click on the item on your tray and select disable for one hour
OR
Open it click on settings (top right corner) and disable file shield & if you wish sandbox.

If that fixes it you can put them back on and set the folder as an exclusion.

Apologies for pushing a product on this site but if you have Avast their VPN and driver updater are very reliable.
Driver updater handles everything with ease including "dodgy" updates like BIOS board and RAID and finds updates for most programs as well. Oddly enough it does Windows updates as well much more efficiently than leaving it to Microsoft default.
Cleanup is also unobtrusive and finds far more registry issues than most I have tried. Just pops up when it decides there is enough to do a clean. Probably worthwhile if you do a lot of file deleting or installing/uninstalling (Andy?)