Windows7 frequently dropped? Download the blame, yes or no

Recently, many users who use the Windows 7 system have sought help from forums and other places. The content is related to the frequent drop of the Windows 7 system. According to the user's description, in Windows XP system (in the case of the system default settings), downloading movies with Thunder or Express is normal, but when switching to Windows 7, the Thunder or Express will stop downloading. These users think that Thunder, Express and Windows 7 are not compatible, or think that Thunder and Express have grabbed bandwidth, so they frequently drop the line.
After a few days of testing, the author found that the situation reflected by Windows 7 users does exist, but it did not reach the situation of “frequent”. At the same time, it is not that Thunder or Express has grabbed the bandwidth. (Even if I grab the bandwidth, the form of the performance is slow, not dropped.) In the process of the author looking for the problem, I think it is caused by the Windows 7 system's default settings for the power management of the network card.
In the Control Panel, right-click on "Local Area Connection" and select "“Properties" from the pop-up menu. At this point, the system will pop up the “Local Area Connection Properties” dialog box, click on the “Configure” button and the system will open the NIC Properties window. In this new window, switch to the “Power Management” option to deselect the Windows 7 system by default. “Allow the computer to turn off this device to save power”.
After the modification is completed, save the settings and exit.
This article is only a solution for the dropout, not that the drop of the Windows 7 system is caused by the power management of the network card.
At the end of the day, I will leave a small question for you. Why do you say (in this article) cancel the system default checkmark: "Allow the computer to turn off this device to save power" option, you can solve the problem. What about the line & rdquo;?