Turns out it was running on an old monitoring PC I had used years before that was still powered on. Since I still use it for a couple of other monitoring apps I couldn’t just turn it off. As a temp fix I stopped the service and set it to disabled. Now the PRTG VM started up and began collecting data once again.

As the PRTG uninstaller did not remove the PRTG service from the old monitoring PC I still needed a way to pitch it even though I had disabled it. A quick search turned up a couple of options, the easy way and the slightly more difficult way.

The Easy Way:

sc delete “service_name”

In my case the command was:
sc delete PRTGService

The Slightly More Difficult Way:

**Dislaimer: This process involves working in the Windows Registry. Before deleting any file please make a backup in case of borking your system.

Run Regedit

Find the registry entry “HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services”

Look for the service there and delete it.