Please Help! Excel Solver Ad-in Error for Excel for Microsoft 365

AliciaTenB 

Translated from the link: https://answers.microsoft.com/de-de/msoffice/forum/all/solver-l%C3%A4sst-sich-nicht-aktivieren/88cec0c4-a2c4-4e38-9a87-df6a54f8f914

Log in as an administrator on the computer

Uninstall the Office again, here is a tool for it:

https://support.office.com/en-us/article/uninstall-office-from-a-pc-9dd49b83-264a-477a-8fcc-2fdf5dbf61d8

Deactivate your virus scanner

Install Office (please check whether the selection of VBA / Macro can be activated somewhere, in the past you could omit this ...)

If it doesn't work now, see if you can get the 32-bit version installed (it is reported that it works afterwards).

If it still does not work, then it may be that guidelines have been specified in the registry in the policies that prevent the execution. Then de- / installing is of no use either, the only thing that helps here is going to a professional, contacting a PC service close to you.

Hope I was able to help you.

Nikolino

I know I don't know anything (Socrates)