back in the day when computer companies cared about us, they used to send computers with a restore CD or USB. so as previous posts have said, Acer has a recovery creation tool that ideally would have been used when the computer was working. Just follow the on-screen instructions for your specific recovery tool. now this is where I'm going to stop because depending on the media you have for recovery, the next steps will vary.Press and hold F12, then turn on the laptop. if it doesn't show up or it wasn't plugged in, just try again by pressing and holding the power button for a few seconds to shut off the laptop. make sure there's something in there before booting. if you have a USB flash drive, make sure that is plugged in before you reboot otherwise it may not show up in the boot manager. the boot manager should appear showing you all the different options on your system. Press and hold F12 as the computer starts to boot.
#Acer e5 575 disable secure boot windows 10 windows#
this is where a recovery usb or disc or windows installation disc will actually work. this will give you options to boot from CD ROM, USB, Network etc. System will now reboot using the old school CMOS/BIOS some of us are familiar with. Set this to ENABLED (may already be enabled for some of you). use arrow keys and navigate to MAIN tab.
![acer e5-575 disable secure boot windows 10 acer e5-575 disable secure boot windows 10](https://www.libble.eu/bestanden1/794981/bg1.png)
Note that the SECURE BOOT option is no longer there! That's normal as secure boot is a feature available only with UEFI.
![acer e5-575 disable secure boot windows 10 acer e5-575 disable secure boot windows 10](https://i.stack.imgur.com/KlxUz.jpg)
![acer e5-575 disable secure boot windows 10 acer e5-575 disable secure boot windows 10](https://us.v-cdn.net/6029997/uploads/editor/y8/jk94z10k6zb1.jpg)
Some misleading and incomplete info in a few of these replies.