So you just installed Windows 7 and the problems started? Why was Ubuntu failing on the first place?No, The machine come with Windows Vista immediately removed by The Institute where it was used before replacing it with XP and Ubuntu.
Before doing anything I wiped The drive deleting all primary and extended partitions with Gparted.
The windows install is clean and updated.
I installed Windows 7 into just blank space (I don't like many partitions on my PCs).
It's strange because I use many of other similar computers (XP era) with 7, 8.1 or even 10 without problems simply getting The driver from CHIP MANUFACTURER like Realtek, Synaptics,... and not computer assembler (Acer, Dell,...).
I'd recommend you to run Dariks Boot and Nuke from a pendrive and clean your whole disk. Be careful, it's a very powerful tool that will rewrite your disk and make data unreachable (lost). Or tales it's time to work, probably a few hours. Once cleaned I'd recommend you to reinstall Windows XP and protect yourself with some light great antivirus as 360 Total Security. Even better I'd recommend you Puppy Linux. Both light enough to work on your machine.I really don't know @Morvotron but The strange thing is that jesterday was working fine...
Ubuntu was unable to boot both in normal and recovery mode.
With Microsoft drivers standard VGA works well but obviously can't use gpu-intensive tasks like hd video stream...
XP was working but it was so messed up by malware and errors that The only way to go was formatting!