Wifi keeps disconnecting only on one laptop other laptop and phones stay connected

My wifi connections goes off and on on my Hp laptop several times in an hours time. It stays off sometimes for two minutes and sometimes for 10 or more minutes. My other laptop and phone stay connected to the wifi. What do I need to do. I found this site thru anther forum and I went to their link they had in the forum and it took me to the InSSider Page of this site. I clicked on the download link for WIndows and it downloaded and installed on my computer and then just went back to that same page. I thought it was suppose to run a scan (analyzer) on my computer? So where and what do I need to do for it to run a scan on my computer to check the channels being used and possible interference with my wifi? Or if there is something else that I need to do to fix my wifi connection issue? Thanks in advance!!!
 
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