system
1
Hi Avast,
After I did a fresh install of Avast on my Windows 10 laptop, I lost access to the start menu completely. Pressing the Windows button does not bring up the start menu and right clicking on the start menu is also disabled. Everything went back to normal after I uninstalled 
https://www.reddit.com/r/Windows10/comments/3f2swg/start_button_not_working/cto3uf3
No problems on my 10 and I have been running since the first preview
system
3
Have you installed all hotfixes from MS and newest available drivers for your hw?