we had the same issue during installing Oracle 19c Software.
We tried the steps above you recommended:
enabling "Client for Microsoft Networks" and "File and Printer Sharing for Microsoft Networks" and Netbios.
This did not help.
However as far as I started LanMan Service
sc config LanmanServer start=auto
sc start LanmanServer
the issue was solved.
Installer hangs at 95%
TNS_ADMIN Environment Variable already set
Remove Environment variable TNS_ADMIN
I understand this is an old thread, but I have problems with the installation of the Oracle Database 18c Express Edition.
I followed all the steps in the installer but the installation froze and got stuck for a number of hours, so I terminated (cancelled) it. I restarted the computer and tried installing the OD again. This, however, proved impossible. After a few seconds I get the following message: "There is an already existing Oracle Database Express Edition service in this machine" and the installation does not proceed.
I'd be grateful for some advice on how to proceed.
All the best