I got my dell 660s desktop last week and I had internet troubles. I assumed it was windows, so I installed ubuntu. Turns out it is the wireless card, I bought a new one. I thought I would like ubuntu better than windows 8, but I dont. When I installed ubuntu it wiped windows off my computer. The computer didnt come with a disk. Any ideas? Thanks
Assuming you never made recovery media with DataSafe. As you are in the US fill in this online request form for Reinstallation Media.
Once you have the media see Upgrading to Windows 8, Step 5 onwards in my Windows Reinstallation Guide: