The update could not be installed. PMP 5 -> PMP 6

[Beast Of Bodmin]

PMP installed on a Windows 7 system on a network drive.

I initially did a "clean" install of PMP 5. No problems so far. After PMP 5 found the v6 update, every time I started PMP it would run the updater, then flash this message. (The update was not completed):

"The update could not be installed. Please make sure there are no other
running on your computer, and then restart Pale Moon to try again."

So I manually installed PMP 6 by downloading the installer to the same directory and running the installer.

I am now running PMP 6, but upon launching PMP 6, the installer is still run and I still get the above message.

I get the feeling something is not cleaning up properly somewhere.

Any ideas?

[Moonchild]

Go to the PM application folder (bin/palemoon), find active-update.xml and updates.xml.
Remove them together with the "updates" folder.

[Beast Of Bodmin]

It was very rude of me not to reply to this for so long.

Go to the PM application folder (bin/palemoon), find active-update.xml and updates.xml.
Remove them together with the "updates" folder.

Your suggestion did the trick.

Thank you so much!