A few days ago, I upgraded win10,I didn t feel good to use and restored win7,And then I couldn t con

Did you use a router?

Network right-click attributes, local connection, details, interan protocol version 4 (ICP IP), auto-get IP address, auto-get DNS server address, OK.

Yes, the drivers that were pre-installed on the original system will not necessarily be transferred to the new system after the system version has been changed.

Drive issues can be managed through butler hardware detection:

Try reinstalling the network card driver. If not, just change to a system disk that can automatically install machine hardware drivers and reinstall the system, so that you can automatically and smoothly solve the problem that the network in the win7 system cannot be used. These are possible with a USB flash drive or hard disk, and the installation speed is very fast.

But the key is: have good compatibility.

Win7 system is not a network card driver You look at the network card driver installation is not。。。

Win10 restores win7 after the network connection can not be solved, the solution is as follows:

1. After the win7 system is installed, the lower right corner of the computer desktop will appear not connected to the network. It also doesn't work with a broadband connection on.

2. Right-click to solve the problem, and the prompt that the network adapter driver is not installed appears.

3. At this time, you need to open the control panel and select to enter the device manager.

4. After entering the Device Manager, you will find a yellow exclamation mark. Then right-click and select Browse Computer Update Drivers.

5. Then look for the entire C disk that has just installed the system, remove the back path, and select the entire C disk.

6. Select the include subfolders, and then click "Next".

7. After finding the driver of the network adapter, it will be installed automatically.

8. At this time, the network is automatically connected.

Disable the network again, turn it on, or shut it down and restart yourself.

It is recommended that you directly use the 360 driver master to detect the update!

If you look at the "Network Connection" status screen, you can see that the network fault is "No Internet access", and of course, there are times when there are "unrecognized networks" and "network icon yellow exclamation mark".

In such cases, you can use the following methods to solve the problem: click the "Windows" button in the bottom left corner of the desktop and select the "Device Manager" item from its right-click menu.

After opening the Device Manager page, find the NIC device that cannot be connected to the network from the Network Adapter list, right-click and select Properties.

From the "NIC Properties" window that opens, switch to the "Power Management" tab, clear the check "Allow the computer to turn off this device to save power", and click "OK" to complete the setting.

If the above methods cannot solve the situation that the win10 network connection is unstable, we need to check the network connection comprehensively. Right-click the Network connection icon in the lower-right corner of the taskbar and select the Troubleshoot item from its right-click menu.

The Windows Network Diagnostics tool will start automatically and perform a comprehensive diagnosis of the network settings and parameters.