As the title suggest, something is wrong with my computer when it comes to stability of the internet. I have minimum 1000 ping, sometimes completely lose internet for no reason, while my girlfriend's laptop has stable 12ms. Sometimes my ping drops as well, but the second I use internet, like go to any website, even google.com, my ping spikes to 1-2k, and stays like that for at least half a minute. I have a stationary PC with a WiFi Adapter. I thought it was the adapter's fault, so I tried it on my gf's laptop, but it also had stable 12 ms. So I came to a conclusion it's something with my PC. I have recently installed new windows 10, a month ago, but so I don't have that many programs on it. My task manager also doesn't show any internet usage. Any tips on what I could try to do to fix this?