Homewindows Determine if an .exe file is 32 or 64 bit byAlex R. •January 05, 2023 Open the .exe file with notepad or notepad++, then look for the first instance of "PE". If after a 2 characters we encounter L it is 32 bit, otherwise if it is d† it is 64 bitExample 32 bitExample 64 bit Tags windows Facebook Twitter