My HP desktop will not connect to my wireless network.?

It is a windows 10. I do have wireless turned on. It will connect to eveyone else's wifi but mine. I tried resetting my network settings and windows but it still reads everyone else's wifi but mine. The rest of my devices connect without a problem like my smartphone and tablet. Do you have any advice on how to fix it or what could be wrong with it? I can't take it to someone because it will connect to their wifi and I really don't want to throw it away it is just 2 years old. I mean is runs great it just will NOT connect to my wifi.
Answers

Barry

Have you entered your router's key number? How to Connect to a Wireless Network with Windows 10 Press the Windows Logo + X from the Start screen and then select Control Panel from the menu. Open the Network and Internet. Open the Network and Sharing Center. Click the Set up a new connection or network. Select Manually connect to a wireless network from the list and click Next.