Solved Need help with installing Windows 8.1 from USB

Hey,

so what my problem is that i cant understand what im doing wrong when i tried to install Windows 8.1 from a USB on my computer that already runs Windows 8.

So i understand that i need to open advanced startup then chose boot from device, then chose which device that i Sanna boot from but when i choose my USB my screen went black with a which underline and havet Done anything for the last 15 minutes.

btw i Havnt changed anything in the Windows launched option(UEFI?)

sorry If this problem already is a thread. But i couldnt find it
-Josef

See here, there might be some posts within this thread that could be useful.

sry forgot the mark remove the thread, i checked brinks thread about updating 8.0 to 8.1 through market. and it worked nice thanks tho