Does Windows folder in all CAPS cause problems such as failing Major Windows Updates?

After a series of failed updates from Windows 10 1909 to 2004 or even 21H1 with update assistant, I was figuring out what caused the updates to fail. Besides it's pretty old installation of Windows 10 since 2016, I also realised the Windows System Folder is all in Caps which does not seem to be normal as all my other machines uses Windows as the folder. Partition layout Diagnostic logs SetupDiagResults.log : https://gist.github.com/Cerlancism/51ae706abbf09be7ee55cc87ef8be2fb Some minidumps (many months old and probably not update relavant): https://drive.google.com/file/d/1zbMyc9QFyVZEpZ3ReNiH

Question by Cerlancism on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.