On: How does Windows decide whether your computer has ...

[majkinetor]

I can access those files, like I said

    irm http://www.msftncsi.com/ncsi.txt
    Microsoft NCSI

    irm http://www.msftconnecttest.com/connecttest.txt
    Microsoft Connect Test

I had this on number of Windows computers, private and corporate. Almost all of them don't have anything like OSU10, simplefirewall etc.

[kiwijamo → majkinetor]

Honestly I've never seen the issue you described on any windows machine on any network anywhere.

[vetinari → kiwijamo]

I've seen this problem pop in randomly; like having three identically configured VMs, two work fine and in third causing trouble. Good luck finding out why.

[majkinetor → kiwijamo]

Are you system administrator ?