GREAT! Now I'm getting a BSOD error 0xc000021a and can't boot my PC. Safe Mode doesnt work.

I tried it, but I was unable to delete the folder $Windows.~BT. It says that I dont have permission, even though I made sure that I took ownership of the folder.

I tried again, but same thing. I will redownload MCT and the ISO again.

EDIT: I changed my system language from portuguese to english, thats why I edit this post. I first posted in portuguese
Index : 1
Name : Windows 10 Pro Technical Preview
Description : Windows 10...

I will try it

I uninstalled Daemon tools, restarted the pc, but again, same error: "Setup couldn't start properly. Please reboot your PC and try running Windows 10 setup again."

I downloaded the ISO file. Mount with Daemon tools, but every time I run "setup.exe" it gives the same message as before: "Setup couldnt start properly". I tried booting into safe mode and deleting...

I tried updating normally using Windows Update. It fails in less than 10 seconds.
I tried using Media Creation Tool. It downloads the update, but at the end it fails again and tell me restart my PC...