The installer package of the NVIDIA GeForce Experience application or the NVIDIA Graphics Driver can sometimes hit generic failures which do not pin point an exact error condition. These errors can be caused by an incorrect system state.
If the software installation fails, the best first step is to reboot and try the installation again.
If that doesn't help, try explicitly uninstalling the previous version (if any), reboot and try reinstalling.
If it continues to fail, you can the following steps to reset the system state.
1. Make sure that NVIDIA Windows services are not running. To stop the NVIDIA Windows services, run "services.msc" from the Run window, then find and stop all services where the service name starts with NVIDIA.
2. After all services are stopped, make sure that no instance of any NVIDIA Application is running. To look for instances of NVIDIA Applications, open the Task Manager and look for processes starting with nv or NVIDIA. Kill those processes, if any.
3. Also make sure to remove the following registry keys if they exist. Run Regedit and search for each key, delete if found.
4. Now try to install again.
If the above steps do not resolve the issue, uninstall all NVIDIA programs using the Windows Control Panel, reboot and try steps 1 to 4 again.