My pc has Invalid timestamp problem. how to solve this?

Question

whenever I login, the time at the task bar is different. what should i do?

Answer 1

Double-click your clock to bring up Time and Date Properties or access it through the control panel.

Go to the Internet time tab and hit Update now next to time synchronization. You should see time.windows.com as the server.

I get timestamp errors sometimes if I move the clock ahead while playing a game or something and I forget to set it back. This always helps.

Answer 2

Replace CMOS Battery maybe?