Arduino won't run after PC file clean up

Hi Everyone, I'm hoping someone can help. After doing a clean up of my hard drive to recover space and then deleting files, I find that ARDUINO 1.8.12 will no longer run. I can launch the application, it opens and display Initializing packages in the text box at the bottom Arduino window and then seems to disappear from there. I've uninstalled it and re-installed however it does the same thing. Unfortunately I can find anything on the forum under troubleshooting. Any ideas what to look for? Thanks

The problem happening at the time of the cleanup might be purely coincidental. Try the instructions here to see if that fixes it: https://forum.arduino.cc/index.php?topic=690045.0 If not, let me know and I'll investigate your specific problem and try to help out.

Thanks, I’ll give this a try tomorrow and let you know how I go.

Thank you. That fixed my problem. All working fine.

Thank You! Thank You! Thank You! Thank You! Thank You!

You're welcome. I'm glad to hear it's working now. Enjoy! Per