Lost my PC and have to buy new MB and power supply.
My Win-installation doesnt work anymore too, so I really have other problems right now. 
Did you try to start the laptop with USB-Stick (you can make one with Windows download tool direclty from microsoft).
With it (manual installation) you can delete all partitions and newly install Win. HDD/SDD will be repartioned while doing so.
If you only forgot your Win password there are much easier ways to create a new user and so you wont loose data.
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