Unlock hidden speed in windows xp

The Windows XP system retains 20% of the system bandwidth for security and stability. For the average individual user, this is obviously a bit conservative, wasting valuable network bandwidth. So how do you get back to this part of the resources? System optimization techniques teach you this method:
Modify the WindowsXP system settings as follows:
1. Click Start → Run, type: gpedit.msc, and click the [OK] button, you can see the figure 1's "Group Policy" window.

2. Under the "Computer Configuration" item, click Open: Administrative Template - Network - QoS Packet Scheduler; then on the right side of the window, find "Limited Retainable Bandwidth" For items, right-click the item; in the pop-up menu, click “Properties", and you will see the "Restrict Bandwidth Properties" window shown in Figure 2.

3. In the "Settings" tab we can see that the Windows XP system default "bandwidth limit" value is 20%. Change it to 0 or a smaller number such as 5%. Click the “Allow” button; then click the [OK] button to save the new settings to your computer.
Bandwidth is the difference between the highest frequency and the lowest frequency that a communication signal can use. We know that the wider a road, the greater the traffic that can be passed per unit of time. If the transmission rate of the network signal is compared to the traffic flow, the bandwidth is equivalent to the width of the road. Therefore, modifying the original settings of the Windows XP system and fully exploiting the 20% bandwidth potential will maximize the speed of the Internet.