Slow Lan Speed in Windows 7!

I was kind of in frustration for the LAN speed i was getting in Windows 7. There are lots of articles on net pertaining to this topic. Some works some doesn't...
I am not good with networking, but tried some and at last it worked. You just have to do is,
Disable the automatic adjustment for TCP window size on the network. You can perform this with administrative rights. Follow the process,
Click start, type cmd (ctrl+shift+Enter to enter by administrator).
Type netsh interface tcp set global autotuninglevel=disabled and enter.
Yes thats it, enjoy the speed!!!

You can crosscheck the output,

Before:
C:\Windows\system32>netsh interface tcp show global
Querying active state...

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
Chimney Offload State : automatic
NetDMA State : enabled
Direct Cache Acess (DCA) : disabled
Receive Window Auto-Tuning Level : normal
Add-On Congestion Control Provider : none
ECN Capability : disabled
RFC 1323 Timestamps : disabled

After:
C:\Windows\system32>netsh interface tcp show global
Querying active state...

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
Chimney Offload State : automatic
NetDMA State : enabled
Direct Cache Acess (DCA) : disabled
Receive Window Auto-Tuning Level : disabled
Add-On Congestion Control Provider : none
ECN Capability : disabled
RFC 1323 Timestamps : disabled

It did work for me. There are also other ways which you will find on net. You can try those if the one above doen't work for you.

1. Go to Start => Control Panel => Programs and Features => Click Turn Windows Features on or off => Uncheck "Remote Differential Compression".
2. Click start => type ncpa.cpl => right click on adapter => select properties => click on configure => click on advanced => highlight the property "Flow Control" and change it to "disabled".