Microsoft is working on fixes. You cannot go back automatically because 2004 version is a major update that replaced your previous version.
If you used Windows Update and did not force the installation report your problems to MS. If you did not use Windows Update, run it now to see if there are any fixes.
Mary G
4 Operator
•
20.1K Posts
0
June 17th, 2020 11:00
Many users have reported problems and MS has posted the list--
https://docs.microsoft.com/en-us/windows/release-information/status-windows-10-2004
Microsoft is working on fixes. You cannot go back automatically because 2004 version is a major update that replaced your previous version.
If you used Windows Update and did not force the installation report your problems to MS. If you did not use Windows Update, run it now to see if there are any fixes.