There is more to the problem that just online connection. SQL Server does not start (at it should work without internet). Office programs do not start and they should work without internet. And many other. I think Avast Uninstall hosed the registry and many other things. I cannot even go to System Restore since it does not work. Almost any program I try I get error with no access. I will call Dell to see how to restore to the Factory setting and start it all again. I have drives C: D: and E:. Most of my data is on D: and E. So hopefully the restore to Factory will not damage anything on D: and E:.
Thank you.

>If it looks like Windows is a bit hosed, and you're contemplating reinstallation: Assuming you have or will obtain installation media, try this before wiping completely:
>
>http://www.pcworld.com/article/243190/how_to_repair_a_corrupt_windows_7_installation.html
>
>If everything looks OK except network adapter(s) aren't working, it would be a good idea to check in the BIOS to make sure the adapter(s) haven't been disabled somehow. To access the BIOS you typically have to press a specific key during boot. You can also press Pause to pause the boot so you can read the screen, then Enter to resume boot process. Enabling/disabling network adapter will usually be in a section named "Integrated Peripherals" or similar.
>
>>I am comparing all settings on this (my second computer, also Window 7) with the one I have a problem. In some online help I see that I need to click on "Change adapter settings" when in the Control Panel -> Network and Internet -> Network sharing Center. But on the "broken" computer, click on Change adapter settings shows empty screen :(
>>
>>>Are there any network adapters called avast or with avast in the name? If so remove them...
>>>
>>>>No, Use a Proxy Server is not checked. Thank you.
>>>>And no yellow flags. All drives show to be Working Properly.
>>>>
>>>>>go to Start > Control Panel > Internet Options > Connections > LAN settings - make sure 'Use a proxy server' is not checked.
>>>>>
>>>>> Start > Control Panel > System > Device Manager - are there any flags showing?
>>>>>
>>>>>or maybe this? https://support.microsoft.com/en-us/kb/299357
>>>>>
>>>>>
>>>>>>I go to the Device Manager and I see several Network Adapters. All seem to be functioning. Yet, I don't what to do next.
>>>>>>
>>>>>>When I run IPCONFIG I see message about all Adapters.. Media State - Disconnected. How to connect?
>>>>>>
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I unstalled Avast AV. But it took with the installation my internet connection. (I am typing this on another computer). How do I set up my Window 7 to be connected to my router again?
>>>>>>>
>>>>>>>TIA