Error:

The installer has insufficient privileges to access this directory: <Directory>. The installation cannot continue. Log on as administrator or contact your system administrator.

Snapshot:

Workaround1:

To prevent this error from occurring, make sure the folder location into which you are installing Office has Full Control permissions for either the Everyone group or the SYSTEM group. Check the permissions for the parent folders because the permissions on these folders may also cause this problem.

Workaround2:

This error can occur if either the SYSTEM group or the Everyone group does not have Full Control privileges for the directory mentioned in the error.

Workaround3:

Create a new account with administrator privileges and installing it on that account.