ageing core 2 duo with 32 bit win 10 (god knows why it wouldn't let me install 64 bit that was on it before my harddrive shat it's pot full )
I'd need to double check, but think 64bit Win10 needs EFI, which is unlikely to be fully implemented enough on a Core 2 era machine... ...at best you may have a partial/incomplete EFI implementation. though more likely to just have a legacy BIOS boot/
I'm pretty sure it don't have EFI ,none of my computers have
Electronic
Fuel
Injection
I put it down to the newer
20H2 windows 10 not supporting the E7400 in x64 at the time ,
though I openly admit not doing a bios update ever on this PC ( Board: Intel Corporation DQ965GF AAD41676-601 )
might try a fressh install of 64 bit latest windows 10 and bios update after I swap over .
I've built a
Gigabyte AMD FX machine now ,16 GB DDR3-12800 Crucial Ballistix ram ,GIGABYTE (GP-GSTFS31240GNTD) 240GB SSD ,600 wat PSU ,1TB back up drive, latest genuine windows 10 pro .
Again old tech by todays standards but computer bits are expensive right now
and i don't do gaming, video rendering or anything that requires taking out a mortgage to buy a graphics card or DDR4 bits
I'm still using the E7400 PC though until i CBA to transfer all the files, web links, accounts etc
As you can probably guess from this post , I'm no computer guru