1, the installation of Windows 7 when using Chinese as the account name, and later found that VirtualBox software, the path can not be Chinese, in the "User account management" in the user name changed to English, but the software is still unable to run.
Workaround: This situation can not simply change the username to English, because once modified, will cause the path name changes, most programs will not be used. I suggest that you can create a new English account, does not affect your previous installation of the program, because each account corresponding to the user name folder, stored in the account of the personal data and software configuration information, the new account just need to reconfigure, and will not cause the program cannot be used. If you want to retain your previous personal data and configuration, you can use the "Easy Transfer" feature of Windows 7 to export and import the data by entering "Easy Transfer" in the Start → search box, and then by following the prompts.
2, sometimes has not entered windows on the black screen, restart prompted "Windows unexpectedly shutdown"; sometimes it automatically restarts, and there are no signs, sometimes in the use of a sudden black screen, reboot prompts "Windows unexpected shutdown." Baffled, what is this all about?
Resolution: Windows 7 system problems are not likely, because if it is a software problem, it will not be directly shutdown without any warning, so the possibility of hardware is relatively large. It is recommended that you press the DEL or specific button (to see the motherboard's instructions) to enter the BIOS to see the CPU and motherboard temperature. Most likely the CPU or motherboard temperature is too high, resulting in forced shutdown, mostly because the fan in the chassis is serious, you can do the chassis cleaning, if the problem remains, it is likely to be a hardware failure.
3, Windows 7 system, somehow, in the Control Panel double-click Network and Sharing Center No response, there is no way to open other related network settings, unable to set the network connection, although I previously set up automatic dialing, the network can be used, but always want to repair, how can I open Network related settings?
Solution: You can call it by other means. In the Start → search box, enter cmd and return, and then type the following command at the command prompt:
Control.exe/name Microsoft.networkandsharingcenter
If the User Account Control dialog box appears to confirm Administrator rights, click the Continue button to eject network and sharing Center. Of course, if you think the command is too long, you can also use a third-party tool such as Windows 7 optimization master to pull out God mode, and then through God mode to drag the network icon to the desktop, and then double-click the icon to open the network and shared center.