I'm sorry, I don't know what wireless drivers are?
No problem. Wikipedia can explain you what drivers are.
The model is- Compaq Presario CQ62-219WM with Intel Celeron 900 & Windows 7 Home Premium. I bought this in 2010, I know it's old but I really like it.
Allright. I've found some wireless drivers, since I don't know what wireless card you have I'll share them all. Please let me know if one worked and which one.
I did shut down the pc before I removed the battery tho
Sorry I didn't know that, thanks for telling me. Then there is no need to panic. ;)
How would I reinstall Windows?
If you have the orginal Windows installation stuff it would be easy, but since there is no need for it I think it's better to not explain it, just to don't make it harder then it is already for you. I can always give you some usefull information if you want.
*moderator edit (Queen-Evie): direct download links removed. From here
Posting of direct downloads links for any software is NOT permitted from file uploading/downloading hosting sites, personal sites and file sharing sites. This is for the safety of our members since Bleeping Computer has no control of files hosted at such sites.
Edited by Queen-Evie, 26 February 2016 - 02:25 PM.
deleted direct download links.