Speed ​​up your Windows XP network connection speed

        "Quality of Service (QoS)" is a network connection program specially provided for Windows XP Professional users. When Windows XP is installed, the system defaults to calling this program. For individual users or campus network users, this program is of little practical significance and will consume network bandwidth, so it is best to prohibit the system from calling the program. In order to completely disable the QoS program and release the network bandwidth occupied by the program, we need to make the following settings:

Click the "Start" menu, select "Run", enter "Gpedit.msc" in the dialog box and single Click the [OK] button to open the group policy. In the tree directory on the left, find the "Computer Configuration → Administrative Templates → Network → QoS Packet Scheduler" directory item and click, find and double-click the "Limitable Retainable Bandwidth" tab item on the right side of the window (see attached figure). Select Enabled in the Limit Reserved Bandwidth Properties dialog box, adjust the number to "0" in the Bandwidth Limit box, and finally click the OK button to exit the Group Policy Editor. Modifications to this setting do not require a system reboot. At this point, the user can see the "QoS Packet Scheduler" in the General Properties tab of the Network Connection Properties dialog box. If there is no such entry, the modification is not successful and the QoS still occupies 20% of the bandwidth.

Figure 1
Tip: If the network adapter has been bandwidth-limited in the registry, the above settings will be ignored.