Well, I am not quite sure what to make about all this.
On some of my user accounts, I have the FADC option. On others I don't. Been through all the firewall settings, Advanced Sharing setting, Network troubleshooting, and my network type is Private.
If I create a new user account, I can have the FADC option so long as the new user account is an Administrator account. If I change it to a Standard account, no FADC.
I tried a system restore to a week or so back, and it made no difference.
I could always try a refresh or completely blow away the OS, but it isn't worth the trouble.
Not sure what the FADC does. I can still find and connect to printers and screen mirroring devices such as my Roku 3 even though I do not have the FADC setting.
In reading this thread and other related ones found with a web search, this appears to be a well documented problem and Microsoft's only comment is to restore, refresh, blow away the OS, or copy folders to new user account. Restore and copying folders to
new user account not working for me unless again I set the new user account as Administrator.
My Windows 8.1 appears to be otherwise working fine, so I'm not going to bother with this.
I have other problems with user accounts awhile back. Microsoft needs to either resolve these problems with user accounts and not make the account profiles so easily corruptible, or else make it so each device can only have a single account like Apple does.
It is a good idea to have multiple accounts on a single PC, but in Windows 8.1 anyways Microsoft hasn't been able to make this a stable feature.
In latest w 10 TP, there is no option for FADC as of yet. Windows 10 is Microsoft's last chance for Windows to be a viable CONSUMER desktop platform. If they can't make it easier for the casual user to set up and maintain, then Windows desktop will be
relegated to enterprise only. So far Windows 10 looks promising. Time will tell...
Update: Looks like creating a new user account is the solution. One can copy over their existing user folders to the new account to keep ones data. There are instructions for how to do this is several places. FADC also only works in accounts with administrator
rights.
So stop beating your heads against the wall, folks. Microsoft has weighed in with their response -- create new user account or try a system restore.
Good day!