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Data file error

Posted: 27 Jul 2025, 19:19
by wuggi
Hi,

I had the registered version 4.7 and installed version 5.3.
A message appeared saying that my license had expired and that I should revert to the old version.
So I reinstalled 4.7, but now I get a "Data file error" on startup.

Why don't you check the license before destroying a running installation?
How can I fix this error?

Thanks in advance.

Best regards,
Thomas

Re: Data file error

Posted: 27 Jul 2025, 21:01
by s130
I have not seen this mentioned before.

All I can suggest is that you uninstalled MES and then install V4.7 again.

Before uninstalling I would look at the MES install and data locations and copy all you find to a separate directory, preferably on a separate drive/USB stick.

Since V4.7 I suspect a lot has changed.

Old versions of MES / V4.7 can be found here: https://www.multiecuscan.net/ReleaseHistory.aspx

Re: Data file error

Posted: 27 Jul 2025, 22:35
by wuggi
Uninstall and install solved the issue.