32 bit to 64 bit Windows 7 do i need to format

[M9104]

Good day.
My PC currently run on Windows 7 , 32 bit.
But I want to install the 64 bit driver, do I have to format my PC or can I just install the 64 bit driver?

Thank you

 

[knight_of_baawa]

Wipe/reload. Only way.

 

[M9104]

Wipe/reload. Only way.

Thank you..