Good to hear you got an answer that helped.
I would not have guessed that solution would work.
Thank you for returning here with your feedback.
Below are some of the files and folders that are in the configuration folder you speak of.
Directory of D:\AtomAlpha\.atom
2020/01/19 12:42 <DIR> .
2020/01/19 12:42 <DIR> ..
2019/12/10 17:56 <DIR> packages
2020/01/18 15:41 4,326 config.cson
2019/12/07 22:46 10,998 init.coffee
2020/01/03 08:40 1,134 keymap.cson
2020/01/02 11:49 1,127 snippets.cson
2020/01/03 11:13 7,167 styles.less
Try to restore those from the backup you made (assuming you did so).
Try running Atom again.
The problem was in the cached files if you have Atom up and running normally.
Else if the problem re-occurs, the the issue is with the customization or external packages.
For that case it is best to start checking what is set in the
Thereafter the packages needs to be cleared.
Do you require assistance or are you sorted?