I have an Asus Transformer T100 which I upgraded from its native 8.1 to Windows 10 about six months ago.
A few weeks back the sound went, and yesterday several keys from the extended keyboard started typing gibberish (the T100 is a 10.1" pad and pc and the onscreen keyboard is fine).
First thing I tried was a good virus scan and Malwarebytes, then a system recovery, only to find idiot here (me) hadn't set one up. Next I decided to do a full install from external DVD to Windows 10 Pro or Enterprise, even 8.1 (32 bit as I believe 64 bit is a non starter), but the DVD is no longer recognised, shows driver errors but not seen in disk management.
The DVD drive is seen on another PC and works fine, so I am wondering if the file system on the T100 is really messed up thoroughly. This leaves the USB stick which is can read.
I have installed Windows 10 Enterprise 32 bit to a stick, but can't work out how to boot from it.
I sort of have, but it asks for a recovery key which I cannot enter as it only allows typing from the extended keyboard and this does not type certaub characters.
When you get asked for the product key, just skip that. As the the PC has been registered with the m$ servers and Windows 10, it will automatically activated once it has an internet connection.