Does anyone know where i can get a key. I have a dell all in one desktop, i brought the computer used and it needs a key.
Newegg, eBay, Amazon, etc.
If you can't find a key (or license sticker) on the computer, then you will need to buy it. There is no way around that.
What is the make/model? Can you private message me the serialnumber Service Tag?
If this came with Windows 8 or 10, then you don't need a key - it is in the BIOS. If it came with Windows 7, it would need to have the license sticker on it. (If this is a laptop, it could be under the battery.)