Your other option is to download Linux (ubuntu is the most popular, but any Linux will do) onto a CD (if your laptop has a CD drive) or a USB stick. You would want to download a "linux iso" (google it) and download and use an iso-to-usb (or iso-to-cd) program. There's a program called Rufus, which does this.
When you have Linux on a CD/USB, go into your boot settings and enable Legacy Boot Mode (whatever it's called), disabled Fast Boot if that's there, and move USB and CD up in the boot order list. Save and exit. You are then asked to enter a 4-digit code shown on the screen next time you boot up.
After that, you put the Linux CD/USB in your machine and boot from it. Some laptops make you press F5, F6, F9, or F-something-else to boot from a CD/USB. When you get Linux running, you can scan your hard drive for issues there and potentially repair it (I can't remember how to start a scan from Linux but on my version, there was an icon in the start bar at the top, which gave me things I could do with the hard drive), if the hard drive being corrupt is the issue.
Other than that, if you don't have a Windows install CD or recovery disk/USB then there's not a lot else you can do. Maybe a PC repair shop can install Windows for you.
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These are the things we've missed out on
Closeness illusionary, intimacy lost
I stand alone now, this is all that I've got
This is all there ever was all along...
When the fog clears and the clouds disappear
We will see with clarity, this is what remains here
You are all that I have now, you are all that I miss
Since when did we need more to life than this?