If you are having issues with rdworks you may want to uninstall and re-install the Thunder flavor RDWorks. Here is how:
UNINSTALL: We are trying to compile any uninstallation data and will update this as info becomes available.
You may also try this: https://www.revouninstaller.com/products/revo-uninstaller-free/
The link for the Thunder Laser specific RDWorks on Thunder China's site is here:
Some users have reported that the zip file is corrupt. It can be extracted with 7zip. You can download and install it here:
Here is how 7zip works on the file:
Also, you may want to explore LightBurn if you are interested in a better replacement for rdworks: