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#21
Did you try a fresh ISO using the tool to write to flash stick in Steps 1 and 2 of Clean Reinstall - Factory OEM Windows 7. This should work if you are using a fresh ISO which the tool can be fussy about. Otherwise use UltraISO Software To Create Bootable USB Flash Drive
Read over the steps in that tutorial and ask back any questions you have. If you stick with those steps, tools and methods you will get and keep a perfect install for as long as you do.