Hi all. I experienced 2 bsods allready today : netio.sys related , which bassically means it has something to do with the network connection. ( I googled it ) could it be that it has something to do with incompatebillity issues between avast en zonealarm free firewall?
I gave up on ZA a long time ago. Depending on your Operating system,
the firewall in Windows v7 and up, does a good job and is less problematic than any other.
Hi Bob. thanks foro your reply , and sorry for me replying so late. I have replaced a fresh image with macrium reflect and running my old combo again: comodo firewall and avast. no more problems to report. I do not like windows firewall , because it feels like a placebo to me ( just like windows defender 
) I love comodo’s sandbox and the way you can tweak comodo…anyways thanks! 
To each their own. I’m happy with the windows firewall because it does it’s job without needing much help.
I do not like windows firewall , because it feels like a placebo to meWhy You Don’t Need to Install a Third-Party Firewall (And When You Do) https://www.howtogeek.com/165203/why-you-dont-need-to-install-a-third-party-firewall-and-when-you-do/
Webroot / Avira / F-Secure / TrendMicro all think win firewall is good eough as all have removed firewall from there programs and just added some network scanner feature that work with win firewall