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Installing Windows 7 on a Tablet




I want to conduct a scientific experiment and install Win7 on a tablet that originally had a dozen. I already put an eight on it, dozens of different versions and even AstraLinux (I do not advise anyone, this is complete nonsense). Next in line is the seven. I am doing this guide starting from point 3 “Installing Win7 on an empty hard disk”. And everything goes fine, no errors, but after rebooting I get a window with the error “Windows Boot Manager boot failed”:

I rummaged a lot on the Internet, but no one is doing this and there is no information on a specific problem. And other information doesn’t help. On the tablet there is a percentage of Intel Atom ZF-something-there, I don’t remember already, x64 supports; costs 1GB of RAM, 14 with a small ROM gigs. I’m trying to put the original Windows image, Windows 7 x64 Ultimate. For the whole procedure I use an OTG-cord, a hub for 4 ports, a USB mouse and a USB keyboard, two flash drives: one WinPE from xemom1, the other has a Windows image.

And my question is, how can I fix this error so that I can boot and continue with the installation?

Answer 1, authority 100%

After doing a little research, it became clear that this error appeared because I installed the x64 edition of Win7, and UEFI on my tablet does not support x64 systems. And the x32 edition of Win7 does not support booting to UEFI. Only Win8 and Win10 in x32 editions can be installed on my tablet.

Answer 2, authority 75%

Well done, of course …

But these actions are not recommended by the manufacturer, not only because there is no firewood and there is a chance that the tablet will not start the OS, but also for a more important problem – hardware.

SSDs are not used in tablets, they usually install a soldered SSD, or, to be precise, they bluntly solder the eMMC chip into the mat. fee.

What is an eMMC chip – a chip that has pins separated (under the belly) memory.

Some of the memory is responsible for the bootloader, some for the hard memory, and some for the EFI BIOS chunk.

And now the most interesting thing – even though different pins should provide access only to certain sections – all crystal infa is stored in a single memory system, one crystal. And when we put, for example, Windows – we see a dozen partitions, some of which are not even detected – if we change (delete or resize) at least one partition – the probability increases that the built-in controller will stop reading the desired partition by one of the pins – and as a result, we can damage the part of the EFI BIOS, which is stored in blocks 0-2 and get a brick without BIOS.

To restore, you will have to unsolder the chip, flash it and solder it back, which costs you around 30k

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