Is it possible to change the installation folder when adding or removing features?

Uninstall and Maintenance Issues

Do I need my original disk to reinstall my software?

 

AutoCAD Stand-Alone Installation Guide > Installation Troubleshooting > Uninstall and Maintenance Issues > 

When should I reinstall the product instead of a repair?

You should reinstall your product if you accidentally delete or alter files that are required by the program. Missing or altered files will adversely affect the performance of your product and cause error messages when you try to execute a command or find a file.

If an attempt to repair an installation fails, reinstalling is the next best option.