BOOTMGR is Missing - No DVD/CD

So i cant press f8 while my pc starts it automatically brings me to the bootmgr is missing page, pls help!!!

Tried to boot with a Windows Repair Disk (matching bit version) or Windows 7 Installation DVD/USB?

No because i dont have a disk with windows 7 and i cant use other pcs because they are laptops, and i only have a 2gb usb

Doesn't matter if laptop or desktop, having the same bit (32 or 64) is enough.

Whew i found a 32gb usb stick, now how do i boot my pc with a usb stick?

You will need to make a CD first and create an ISO from it to make the USB.

System Repair Disc - Create has all the steps and a link to another necessary tutorial.

Everything is here for Troubleshooting Windows 7 Failure to Start.

Find a Win7 of the same bit version to make a Repair CD, or locate a safe copy of the ISO for Win7 installation media which includes Repair functions. Finding safe media is discussed in step 1 of Clean Reinstall Windows 7