After upgrading to Windows 8, im facing a very slow download speed. My router and the NIC is working fine because on the same PC I also have Linux. In Linux, everything works fine.
When checking through the task manager, it shows that the system use the full bandwidth 1Mbps even without a download. The process menu doesn't show whats taking much bandwidth. The bitdefender's firewall also shows network activity.
Is there any hidden apps downloading? How to fix this?