I was asked recently to look at an Acer Aspire ZC-107 as it's printer was not working and there was a suspected virus infection. So I figured the best approach was to wipe the machine and reinstall windows. When I attempted to boot the machine from a USB I was informed there was no boot media on my USB and I should insert a USB with boot media and press a key to try again. I tried with three different USBs but got the same response. I know these USB devices had boot media on them as they all worked on my HP laptop. I had a look in BIOS and disabled secure boot and enable the boot menu. As far as I could tell the machine was detecting the USB but failing to boot from it. I also tried reset Windows from the recovery menu but this failed as well. When I got home and tried to boot my HP laptop from one of the USBs I got a severe security warning. I tried getting support from Acer but the SNID was not recognised. I assume due to the age of the machine. I'm hoping that somebody in the Acer community might be able to help me please.