I believe there are a lot of students win10 computer system at the time of learning Huawei data communications, basically encounter a situation which router Huawei ensp simulator can not start properly, shown in Figure 1: 
Figure 1 device is turned on with error code 40
then today I teach you one kind of pliant workhorse perfect solution to solve the above problems.
1) First you must first download the previous version of the simulator Huawei ensp 510 and download and install the latest commercial version of the simulator of FIG Huawei 2:
Figure 2 Huawei 510 version and the latest version of ensp ensp
Ps: If you want to get two versions of the simulator, you can leave a message
2) The net effect is installed in the computer's "Control Panel - Programs - Programs and Features" you can see the following program is considered successful installation:
3) After the successful installation ensp510 to unload only the "Control Panel - Programs and Features - Program", as shown in FIG 
3 uninstall 510
) Unload clean, Huawei The installation of the latest version of the commercial ensp (i.e. eNSP V100R003C00SPC100), the installation is successful, then the "control panel - procedures - programs and functions" in the version information will be shown in Figure 4: 
4 has been successfully installed the latest version of FIG.
5) and ending with the most recent version ensp, as shown in Figure 5 
Figure 5 the latest version ensp
6) click simulator "menu - tools - registered devices" and register the device, the device after registering successfully, this time successfully turn on the device shown in Figure 6: 
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6 perfect solution
More consultation needs can leave a message, I do not know what technology small pan