install Win10 fails- admin privileges

I downloaded the msi to upgrade to I ran it from my acct which has admin privileges, and it failed with "error 1303 - insufficient privileges to access c:\program files\libreoffice 5\program. I DID clink OK on the dialog “do you want to allow this prog to make changes.”

I tried to run it from the admin acct as well, and got a similar message.

The installer took the previous version off - so here I am with nothing, and I can not re-install. I will appreciate any help / ideas. Thank you.