You cannot install applications by copying a few files.

Re-installing Office should have no effect on your personalisations, which is why it is rarely a cure for problems, but in this case you have a conflict that needs to be resolved and that is likely to remove essential Office files or even all files if the two versions are of the same product release.

__________________
Graham Mayor - MS MVP (Word) (2002-2019)
Visit my web site for more programming tips and ready made processes www.gmayor.com