Question I cannot get to install Windows 10 on my Asus P8z68 Deluxe motherboard

May 31, 2020
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Hi my Asus P8z68 Deluxe mother old bios was version 501, i wish to start using the board again so i update the Bios to the latest which is the version 3603 , but since i did the update i cannot get to install windows ,or any other operating software, for windows it begin to load the it come to the part where a dotted circle keep going around then stop and did not move again, i leave it for a few hours and still the same, i then down grade to version 3202 but still the same, i then try version 902 but this time it say the is out dated, , if only i could get it back to version 501 at lease i no it work, please can you help , is there a bug in the undate
the motherboard had i7 cpu and 12 gb ram thanks