Internet very slow on Windows 7, I tried a lot of bugs with no luck

I have Windows 7 Professional 64-bit. I used it without a problem for several months. But lately I had a very slow internet connection, no matter what program I use to. The same computer dual-boots with Windows XP: XP connects to Windows 7 to 0.3 Mbps and 8 Mbps.

Security software: Avast and Comodo (use every two months with no problems).

System Restore has been disabled by mistake, there is no restore points for trying.

I tried EVERYTHING to fix this! I tried:
-disabling auto tuning (this greatly improved navigation on the web, before pages would take ages to load, but the download speeds are still slow)
-Disable IPv6
-Disable Windows Firewall
-disable the Windows Defender real-time protection
Re-setup of ethernet card
-Re-installation of network card
-uninstall the Windows updates (those I was actually able to uninstall)
-boot by using the system configuration to start without starting programs or non-Microsoft services
-reset the TCP/IP stack
-safe mode with networking
-disabled the DHCP broadcast flag
-change the heuristics of Windows scaling (since he says this overrided other parameters) and the provider settings control congestion

Is there anything else I can do?

For any question on Windows 7:

http://social.answers.Microsoft.com/forums/en-us/category/Windows7

Link above is Windows 7 Forum for questions on Windows 7.

Windows 7 questions should be directed to the it.

You are in the Vista Forums.

See you soon.

Mick Murphy - Microsoft partner

Tags: Windows

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