problem with returning to new user layout

hi, I was trying to mess around with Niagra, and I accidently deleted the baker (system overview) tab I couldn’t figure out how to restore it to default so I tried deleting it and opening up a new Niagra shader, but it was still missing the default blueprint then I accidently deleted more stuff and that got saved too. so, I tried opening up a new project and the problem still persisted. after that I tried deleting all previous projects but had no luck with that, so I deleted and reinstalled ue5 and it still didn’t set it back to normal so I deleted epic games launcher and ue5 and redownloaded them, and even made a new account and I still can’t get it to go back to normal. please help!