Stop dating your computer
First, in the application, go to Settings — Additional — Network — Proxy server settings and make sure your configuration is up-to-date. If you have encountered an update issue on your laptop, try disabling the option that is turned on by default.The feature called Battery Saving prevents the application from performing a virus scan and downloading updates when your device is running on battery power.Click on the Log On tab and make sure it’s set to This account – Local Service.The password fields should automatically be filled in, so there is no need to type in any passwords.If only time is displayed in the notification area, click the clock to open the calendar.In Windows 8, the current date is shown on the Tools Bar.You can check out this article from Microsoft that details how to perform a clean boot in Windows 7: The next thing you can try is to run the system file checker.
If you have any third-party clock manager or time programs, go ahead and uninstall them and see if that resolves your issue with changing the Windows date and time.
You can run SFC by opening a command prompt and typing in the following command: System file checker will verify all system files and will replace any file that is corrupt, modified or damaged. Just type in the word time and you can change the time too: Note that the time is in 24-hour format and you can specify it down all the way to milliseconds.
You can also change the date and time in Windows using the command line. You should be able to change the time without having to open an elevated command prompt.
Open a command prompt and type in the word date and press enter. If you get an error, however, then try running the command prompt as Administrator.
If you get an error message like “A required privilege is not held by the client” when trying to use the command prompt, go to Control Panel, Administrative Tools, Local Security Policy and then navigate to Local Policy\User Rights Assignment and ensure that Change the system time and Change the time zone privileges are given to Administrators.