Windows not updating time
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 you are able to change it here, you then know it’s a problem with either a startup item or a Windows service.You can then perform a clean boot of Windows 7 to narrow down the issue.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.Do you know why "have you tried turning it off and on again" is such an IT support cliché? There's no magic trick to this – it simply clears out your computer's temporary memory (including any stalled files or processes), and lets Windows start again from scratch with everything on the system.If your updates are stuck in the background while you still have access to Windows, you can restart as normal; if they're stuck before or after the OS loads, you're going to have to hold down the power button and do a hard reset.
In Windows 10 you can find the Windows Update page by launching the Settings app from the Start menu and clicking Update & Security – if there's something wrong and Windows knows what it is then you should find details here.
We're going to cover a lot of ground here for several versions of Windows and a variety of 'stuck' scenarios, so you may have to tweak some of these steps to suit your situation and software.
The first point to make is that interfering with updates that aren't actually stuck can cause a host of problems, so you want to make sure they really are stuck.
Sometimes a conflict can occur and a third party program might prevent you changing the time.
Hopefully one of the solutions above fixes your issue.