The error message may look like:
Option 1: If you can get your Windows user account elevated to administrator permissions, then open the DSE program shortcut properties (right-click on the program icon to see it) and then enable the check mark in 'Run this program as an administrator' under 'Compatibility' settings.
Click OK to save this change. Now try running DSE.
Option 2: Ask your PC administrator to re-install the software but choose the destination folder to be the Documents folder under your standard Windows user account.
The default Program Files directory where DSE installs occur is usually locked for read/write by admins only.
Replace 'your_Windows_account' with your real Windows account name to find the correct folder path.