Can you check the content of TNSNAME.ora? which is located at same path with Listerner.ora.
Ie. Below is my TNSNAME.ora
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
Yours should be HOST=vditest04.test.ca, if not please change it.
After that open a command prompt, enter below
NOTE: replace the password with the password you set during xe installation.
If successfully connected, it means your xe is running well.
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