Solved! Hi. I've bought an Acer Aspire 3 A315-53-35FQ and, after one week of use, it does not start anymore.

Mar 28, 2019
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I switched te boot sistem in BIOS, from UEFI into LEGACY so I can switch to boot from USB. Now , when I start the laptop, and in BIOS is with LEGACY it says : "This product is covered by one or more of following patents: US6,570,884 US6,115,776 and US6,327,625. And when I switch in BIOS on UEFI (as it was on the begin) it shows the message "No bootable device". But also when it is in UEFI mode in BiOS, the hard disk is not recognized. Only in LEGACY mode is recognized. Can u please tell me what can I do?
 
Solution
be sure the USB drive is still working and can be used as boot device. Try repairing windows with Microsoft´s windows media creation tool

most likely your hard drive is faulty or the boot manager isn´t working anymore