Windows 10 Version 1903 may launch with a Major Bug

Need to completly reinstall win10. have 3 annoying bugs after this update and i am unabe to fix them.
1. windows defender exclusions does not work anymore, whatever folder i choose to exclude the flase positives get detected and removed.
2. i got a spinning round circle on my mouse every 2 sec for like 0,5 sec.( it just didnt stop, even when i change mouse settings?)
3.wlan adapter randomly stops between 1/4 hours, need to restart the laptop to connect to any hotspot, wlan or whatever i want.(alrdy tryed uninstall/reinstall driver, doesnt help either)


Realy never had problems with updates before but this time it completly messed up my system lol. atleast i have something todo this weekend.