I cant log into any microsoft related thing

Please try to manually change your DNS:

Go to Settings > Network & Internet > Change Adapter Settings. Then right-click your connection and select Properties > IPv4 > Properties. Finally, select Use the following DNS server address.

Test with both DNS settings:

Primary: 1.1.1.1 / Secundary: 1.0.0.1

Primary: 8.8.8.8 / Secundary: 8.8.4.4

See if you still cannot access Microsoft websites with these manual DNSs and let me know.

Hello lucas, when i try entering the log in page it sends me to a "this site cant be reached" error saying it took too long for login.live.com to respond after a few seconds of loading.

I tried to clear cookies before and it didnt work as friends recommanded me

No, i never did any of those things, it just stopped working one day

Do you have a proxy or VPN? And have you changed your DNS settings manually on your router webpage or device?

Hello, Kazekitsu. Thanks for reaching out. I'm Lucas, an Independent Advisor and a Microsoft user just like you. I'll be glad to help you out.

What happens if you try to sign in on a Microsoft website using your home network? The page doesn't load or it shows you any error message?

Waiting for your kind reply.