Win 10 install works for 32bit but crashes for 64bit

Hi

I am doing a clean install on a new PC build. I have windows 10 on USB that I purchased with the computer components. When I try to install the 64 bit version, the first time it starts loading files then goes the screen goes black and resets. The second time, it starts loading files then sits on the black screen with the blue windows icon forever.

However if I try to install the 32 bit version, it loads the files and moves on to select language etc - basically it looks fine.

I have tried this with a few different SSD drives and get the same result.

I have flashed the BIOS to the latest version. The main board is ASUS Z87M-PLUS.

If anyone has any ideas on what could be be the problem, I would appreciate your help.

Thanks

Found it - faulty memory stick.