I have a Lenovo laptop from probably 2014 that was running Windows 8.1 and wanted to update it to Windows 10. So I have a pen drive with windows 10 64 bit on it, and i loaded it up. I got to the partitioning step, and there were 7 partitions. I formatted all but 2 which were recovery partitions. I tried to load Windows 10 to the main partition with 800+ gb, and it says "Windows cannot be installed to this disk. The selected disk is of the GPT partition style." So then I saw something on google that said you could convert it to MGP or whatever it's called in the bios lol. So I try to boot into bios and i tried every way to get into bios and it just loops. It says Lenovo and then it comes up with a black screen that stays for like 10 seconds. It says
Intel UNDI , PXE-2.1 (Build 083)
Copyright (C) 1997-2000 Intel Corporation
This product is covered by one or more of the following patents:
US6, 570, 884, US6, 115, 776, and US6, 327, 625
Realtek PCIe CBE Family controler series v2.57 (08/27/13)
PXE-E61: Media Test Failure, check cable
PXE-M0F: Exiting PXE ROM
That just loops forever and like I said ive tried everything to get into bios. Please someone help me.
Update: I formatted the USB as GPT and loaded Windows on it. This time when i put it in the laptop the lenovo logo has a loading sign under it. I get to the Windows setup screen and it lets me click next n which partitionn i want to pick, and when it gets to the page with the percentages and it says "Windows detected that the EFI system partition was formatted as NTFS. Format the EFI system partition as FAT32 and restart the installation." So I do as it says and pick FAT32 on Rufus and try again and it says the same error. Also I tried to goto the "Repair My Computer" option on the install now page and it now gives me the option to get to UEFI.