ran malware antibytes, found 42 pups.. mostly that nusience 'mydail' sleezeware. What I learned: Herd Protect, MS defender both routinely miss mydia
Did you run it in safe mode aswell ?
always make sure that you save the protocol in the end.
The yellow triangle normaly is an indication that something is wrong with the connection try right click and let windows try to repair or search for problems
if that doesnt work the cause could be your router itself.
Check your device manager
if your Lan Wlan driver has a yellow sign aswell.
(systemsettings / Hardware and sound / device manager )
if so try to reinstall it from trhe disk that came with your motherboard or PC
If the above step doesnt help try to cut power (unplug the power cable) from your router for about 30 seconds.
(if you have access to it)
30 seconds will not delete access data from it it will just give it enough time to reboot.
once the 30 seconds have past replug the power cable and take a look at the led´s on your router
if everything is lighting up your router is woprking fine
check your pc if the problem is solved
Let me know if that helped