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I recently bought a second-hand asus t200ta, with a 64bit processor (which I confirmed) but only windows 10 32bit. I attempted to install 64 bit windows, but I encountered a number of errors. I installed the microsoft media creation tool and created an installation of 64 bit windows 10 successfully, but when I load the bios , where you should be able to change the boot order to boot from the second drive, where the installation of windows 10 64 bit is stored, there is only the option of 'Windows Boot Manager', even after I disable secure boot.
Person X
Posted 2019-08-23T17:35:56.473
Reputation: 11
3Just an FYI: You won't be doing an upgrade to change bit-ness. You'll have to do a clean install. The other question is why you wish to install the 64bit OS version. For a low-powered computer like this, the 32bit version of Windows will run better. There are also reports online that there are limitations in the BIOS that will not allow 64bit Windows 10 to be installed at all. – music2myear – 2019-08-23T17:43:29.783
@music2myear I'm intrigued...why would a 32-bit OS perform better on low powered hardware? – I say Reinstate Monica – 2019-08-23T17:48:24.383
Just read a few forum posts. Apparently the 64bit Win10 has "additional" security features such as required driver signing and other things which would basically make it run successfully on a narrower selection of hardware. I don't know if there's any performance penalty to running 64bit instructions because the CPU (and assumedly, the architecture as well) is 64bit, but the numbers the system has to handle would certainly be bigger. Some report the 2GB version of the t200a also only has a 32bit EUFI BIOS. On the Microsoft forums there were a handful of comments alluding to these issues. – music2myear – 2019-08-23T17:55:02.370
The CPU is the Atom Z3795, likely: https://answers.microsoft.com/en-us/windows/forum/all/intel-atom-z3795-on-tablet-can-it-install-windows/315a322a-d96f-43d6-a4ff-d22d27cb2488 https://answers.microsoft.com/en-us/windows/forum/all/intel-atom-z3795-windows-10-x64-pro-1809-no-audio/80db07a3-0d6e-43b3-a812-7bf2a5515be6 https://www.tenforums.com/installation-upgrade/40301-win10pro-64bits-not-possible-z3735f-w-ami-bios-9-failed-solutions.html
– music2myear – 2019-08-23T17:56:36.600Actually, the 64 bit system works better than the 32 bit system, even for low powered devices, as the ram handling system is significantly improved, leading to an increase in overall performance. As for the UEFI, I was unaware that there were different versions for different versions of operating systems, as they exist on the pc before the OS does, and are, in fact, used to install the OS. – Person X – 2019-08-23T18:48:35.317
Devices that came with an Atom processor, did indeed have a 32-bit UEFI kernel and were incompatible with 64-bit versions of Windows. There is also a very small performance penalty that does exist by running a 64-bit operating system on a device with less than 4 GB of memory. There is a reason OEMs provide 32-bit versions of Windows on those types of devices, and it isn't connected to cost, since the costs are identical. – Ramhound – 2019-08-24T12:46:38.817