Hi everyone, I picked up a really cheap second hand HP all-in-one machine (HP 22-h010a). It was working fine at first, so I did a clean install of Windows 10 and realised the touch screen wasn't working - very very normal for Windows 10 apparently (only works with older drivers). I found the BIOS was really old so I put the latest one on. Everything was still working after that, including after a few reboots... then it just "locked up" during a reboot (the windows logo appeared but it just stayed like that). I can access the BIOS, change the BIOS settings etc. I've cleared the CMOS, replaced the CMOS battery, re-entered the settings etc. It can see the RAM, hard drive etc. If I attempt to boot my Windows USB stick (for a clean install), it sees the USB and brings up the Windows logo - but sits there. It can't get passed that. One thing I did find is that upgrading the BIOS removed all the machine ID's (i.e. serial number), which is a common issue with HP BIOS updates. I managed to fill in as much as I could, and I have no idea if this is what's causing my problem. If I put in a CentOS 7 bootable USB image, it will see the USB, bring up the usual menu (install Linux, verify media, troubleshoot)... but when I then select any of the menu items (i.e. to install Linux), the machine seems to lock up (the backlight remains on but nothing else seems to happen). if I put in a Memtest bootable USB image, it boots from that and will scan the memory! It works totally normally. I'm totally at a loss here. Usually with a BIOS issue the computer is dead from power-on, but I can get into the BIOS and do a few things. I've tried googling it, but pretty much everything is about a total BIOS issue (completely dead machine) but mine isn't. Does anyone have any pointers? EDIT - Also just tried the GParted live CD. It boots to the CD, brings up the pretty background and menu options - no matter what option I select, the menu disappears and I'm left with the background image (of CD's). But nothing actually loads.