Windows 10: No internet and no operating system

Not sure what to do. I did find a page to uninstall Win 10, but I'm not sure it would do it correctly without the internet. I'm not even sure if it would work because I was afraid to try it. I was hoping you could give me some ideas before I took the computer to a specialist. It is a HP computer and it was running on 8.1. I'm using my spouse's computer to post this. Any suggestions or advise will be greatly appreciated.

:)

 

Wi-Fi is on // No connection (after Windows Update)

On Oct 13 windows updated.

The update must've invited malware into my computer. I tried to run my antivirus after the update but it said there's no connection. Google chrome lost connection as well and then I got a pop-up saying that Windows Defender found and blocked a "Severe Trojan
threat". So I deleted it and I still don't have connection... (weirdly) the only thing that works is the Explorer app. I have internet; the Wi-Fi works just fine but, everything else doesn't connect. It's something internal that must be causing
the problem and it all started after the update.

P.S.

It also changed my network from private to public so I had to fix that.

And YES, I did allow these programs through the Firewall so that's not the problem.

 

Wi-Fi is on // No connection (after Windows Update)

still isn't working.

 

What exactly are you trying to do? Is there a problem you are trying to solve? From the limited information you have provided it sounds like you are going to need a Windows installation USB or DVD.

 

I'm trying to get my computer to work again. It was all working fine, until I upgraded.

 

If you're getting "no operating system", you have to resolve that problem before you could even consider trying to revert to 8.1.

You may be able to repair the Windows 10 installation using a bootable Windows 10 installation device:

http://answers.microsoft.com/en-us/i...6-12fa86ef081e

You may have just discovered the reason that I recommend imaging the old OS installation before upgrading the operating system. Unfortunately, many people may not understand what "imaging the old OS" means, much less being prepared to do it.