Win7 system time how to ensure accurate

We all know that the computer display time is affected by the CMOS battery, of course, may also be affected by similar viruses, in any case, the use of a long time, it is inevitable that the system time is not accurate. Is there any other way to make the Win7 system more accurate than it is often repeated?

1, first click the system's time bar with the left mouse button, in the pop-up window click the "Change date and Time settings" option; (some users have not installed Win7 system, can go to the system home to obtain the latest installation system)

2, then find the "date and Time" Panel, in which you directly switch it to the "Internet Time" tab, and then click the Change Settings option;

3, then will pop up the "Internet Time Settings" window, in which to delete the system default time.windows.com, and then enter a new server address, the address is as follows: pool.ntp.org (the system will automatically be the time), after the operation is completed and then click Update Now.

Once the update is complete, win7 64-bit purity shows the last time the synchronization was successful, and the current pool.ntp.org server automatic sync time cycle is once a week, more accurate than the Windows default time server!