Windows 10: My wifi is connected, and my computer says it is, but any application i open says it isn't....

so I have an Optiplex 7450 all in one desktop. My computer cannot connect to the internet without one of those little usb things that allow it, so I have one in it. This allows me to get online but earlier I got on my computer and despite my wifi saying I'm connected and that nothing is wrong, none of my applications are acting like I'm connected to the wifi. I have reset my computer, updated my drivers, reset the wifi on my desktop, uninstalled and reinstalled my driver. I don't know what to do and what's wrong with it. It's not my router, because my roommate can connect to anything with no i

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Can´t connect to my Wifi network

Hi everyone,

I can´t connect to my Wifi from my desktop with Window 10. I had an ethernet cable before and it worked perfectly but now I can´t connect my computer to the router through the cable anymore.

For some reason it detects my wifi network but when i try to connect it says i cant connect.

I followed a few tutorials online of how to fix it and still didn´t work.

any help please???

thanks in advance

Ramon

 

Cortana isn´t working

When I hit enter, it did something, but there´s still no Cortana, even after restart. So I tried it again, but now it says that it failed, because it´s already installed and it´s working in PC. So it should work, but Cortana still isn´t here.

 

Printer isn´t working after latest update.

After the latest update from Windows, my Canon Pixma ip6600 printer isnt working. In Device Manager it shows up as working properly but when I go to print it isn´t listed as an option in any programs. Troubleshoot suggests it´s a USB 2 printer on a USB
3 port and that that´s the problem but that cant be since it worked fine before the update. I´ve tried to uninstall and plug it back in but that doesn´t work either.