Windows 10 resetting this PC stuck at 43%

Oct 8, 2018
1
0
10
Hi, I tried to factory reset my laptop, but it got stuck at 43%, and it remained like this for a couple of hours so I powered it off. Now it shows just an unlock screen where it says username and password , I filled them and nothing happened, it said password or user name incorrect. I have like 2-3 years of experience but nothing like this happened to me ever before.