Hi everyone. i have a sony e series 14p laptop to repair. i have to install a fresh copy of windows 8.1 64-bit on the device but obviously i'm having a problem. the laptop originally had a windows 8 installed on it but someone (without creating recovery dvd's) decided there is no need for that and repartiotioned the hdd, deleting all data (no personal data thankfully) in the process. i know that it had gpt partition but he changed it to mbr. he couldn't install windows so now it's my job to do it. i tried with both windows dvd and a usb flash drive i made with rofus, but when in partition selection window i click on any of the 3 partitions it says windows can not install on this device because of mbr. so i changed it to gpt with only 1 partition and again this time an error says the hardware doesn't support booting from this hdd thus windows can not install on it. all this time booting was in legacy mode. so i changed it to uefi and made another flash drive with gpt partition scheme for uefi and tried it. this time however when i choose to boot from usb it says no operating system found! the flash drive i made was according to a guide i found on sony support forum and other forums as well. so what to do? the owner wants it done by friday so i don't have enough time. help is really appreciated.