Use this Command to get Windows 10 download working if you don’t have $Windows.~BT Folder. Yesterday, we said Windows 10 pre-downloading began on reserved systems, in case if you don’t see that $Windows.~BT folder in the drive, there is a command that lets you start the Windows 10 download on your computer.
Start Windows 10 downloading with this command
1. On your reserved Windows 7 or Windows 8.1, open command prompt as administrator
2. Type wuauclt.exe /updatenow and press enter.
You don’t need to anything if you have bits folder.
Caution: Don’t try this, nobody had success with this, you may just waste a lot of time.