BUG! In Task-Manager/Performance/Up-Time displayed value - this may lead to serious consequences.

Question

I noticed, for the second time, the value displayed in Task-Manager/Performance/Up-Time is, in my system, 3 times bigger than the real value.
Interestingly, I cannot detect it at the minute level, so, if you want to check it, you'd better do this:
1- switch off and then on, your system.
2- log in and check immediately, the Task-Manager/Performance/Up-Time value - it must be near zero (some time will have already passed).
3- wait 3 full hours (use your wrist watch) and compare the values - you'll see a clear discrepancy.
Of course, you cannot switch off your system while waiting, but you can use it normally, inclusive switching users.
As this is related to timer interrupts, this may lead to serious problems, depending the real cause of the problem.
My system is pt-BR, but I don't see how this problem is not generic (any localization).

Answer 1

Hi BR AJCrau,
If you have the Fast Startup option enabled, the Uptime Clock in
Task Manager will not be reset if you Shut Down and restart or
Sleep and restart.
However, it will be reset if you Restart the computer from the
power options.
Refer to these steps to disable
Turn off fast startup
Press
Windows + W keys to see the search charm, type Power Options and press enter key to open
Power Options window.
In the left pane of
Power Options window, click Choose what the power buttons do.
Click on Change settings that are currently unavailable.
Next, under Shutdown settings, remove the check mark to
Turn off fast startup (recommended).
Uncheck box to Disable the feature.
Click Save changes button to save the changes.
Regards,
Lany Zhang