Answers about network connection conversion problem

According to the user's reflection, we now find a user's problem to solve, is about the conversion problem of the network connection, you may not know what is this problem, look at the user's question I will know. A friend from Hunan asked: My computer has two network connections, and now the network connection cannot be converted. I want to disable a network connection and then enable another network connection. However, when the connection is opened, the system prompts: "Don't disable the connection. At this time, the connection cannot be disabled. This device may not support the plug in the same or multiple. The ready-to-use protocol or it is initialized by another user or system account. ”. At the same time, another connection cannot be enabled, but the device can be turned off and on in the device manager. Please take a look!

Answer: This happens because the security catalog database file (catdb) has been corrupted. I don't know if you noticed it, there is a service called "Cryptographic Services" in the system, and the mystery is here. This service mainly provides three kinds of management services: one, cataloging database service, mainly used to determine the signature of Windows files; second, the protected root service, used to manage the certificate of the computer trusted root certificate authority; third, the key service, Used to help register a computer to obtain a certificate.

So the solution to this problem is to stop the service and replace the original file with a corrupted catalog database file (catdb). The location of the general security catalog database file (catdb) is in the "CatRoot2" subdirectory under the system catalog. The repair process is as follows:

First, copy the "C:WINDOWSsystem32CatRoot2{F750E6C3-38EE-11D1-85E5-00C04FC295EE}CATDB” file from another normal computer, then back up the folder in the machine and restart the computer. Then press the F8 key to enter the safe mode, and replace the files in the machine with the files copied from other computers.

Everyone has a problem. Although it is proposed to discuss, if you want to back up or modify the registry like this, the average user can't solve it yourself. Now this tutorial helps users answer. Do you think it is very simple? I hope to be useful to you.