I got a new laptop recently (Dell Inspiron 14R). The other day I plugged it in to my teacher's printer at school with a USB, I think before I powered it up, and when I powered it up it launched the system recovery. I went through the steps, and it couldn't fix the problem automatically. It told me to unplug any external devices, so I did. It relaunched system recovery. It still couldn't fix the problem automatically. It prompted me to do a system recovery thing that would put it back to factory mode, so I did. Once it was complete, it restarted and loaded the "BOOTMGR is missing" page. I made a repair disc and tried that, and it booted from the repair disc but it took me to the system recovery thing, which still didn't work. I tried using the command prompt, and after that it said the operation was successfully completed. So I restarted the computer (feeling very hopeful) and it took me to the "BOOTMGR is missing" page once again. I tried changing the BIOS thing so it automatically boots from the CD, but I still get stuck at system recovery, which ultimately takes me back to "BOOTMGR is missing." My mom is kicking herself that we decided against tech support. Anything else I should do before paying money to have someone look at it?
I'm not extremely tech savvy, so if you could keep the answers basic I would appreciate it. :)