Windows 8 reports WRONG uptime (possibly total Hybrid-Boot uptime)

Question

The up time shown in the picture is 6 Days, 1 hour, 34 Minutes, 22 seconds. I turned on this Laptop just about 7 min ago.

I actually think it like, Windows 8 reports the total up time while in Hybrid-Boot mode. How do I get the real up time?? Also, why does Windows reports it that way??

Is there any way to get the real up time in GUI way (for my n00b friend)??

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UPDATE: I disabled Hybrid-Boot and rebooted. It now results the right uptime. Also, doing a full shutdown with shutdown /s /t 0 also works.

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Little more explanation, My question is that How to get the actual up-time (time from when we powered the system on) even if the Hybrid-Boot is enabled? Possibly in stock Windows without any external program, though not necessary.

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Any explanation to this?

Answer 1

You want to get an out-of-the-box solution to find out the uptime of your machine since the last hybrid shutdown / fast startup took place, right?

You can get this information (as provided by @allquixotic) from the EventLog using PowerShell like this:

PS c:\> Write-Host $("{0:c}" -f ((Get-Date)- (Get-EventLog -LogName system -Source "Microsoft-Windows-Power-Troubleshooter" -Newest 1).TimeGenerated))

To embed powershell command into a Windows shell script you can do this instead:

c:\> powershell.exe -nologo -command Write-Host $('Time since last ''Fast Startup'': {0:c}' -f ((Get-Date)- (Get-EventLog -LogName system -Source \"Microsoft-Windows-Power-Troubleshooter\" -Newest 1).TimeGenerated))

Howerver, to get this to work out of the box, you could set it into a permanent environment variable like this instead:

c:\> setx HardwareUptime "powershell.exe -nologo -command Write-Host $('Uptime since last ''Fast Startup'': {0:c}' -f ((Get-Date)- (Get-EventLog -LogName system -Source 'Microsoft-Windows-Power-Troubleshooter' -Newest 1).TimeGenerated))"

so, you can then get it to work by opening up a cmd window and doing:

c:\> %HardwareUpTime%

UPDATE:

I just found today that using the above entry in the event log will also take into account "Sleep" or suspend mode, so running %HardwareUpTime% will tell you the elapsed time since the PC resumed from sleeping if you let it do so.

Therefore, here it is:

setx HardwareUptime "powershell.exe -nologo -command Write-Host $('Uptime since hardware boot: {0:c}' -f ((Get-Date)- (Get-EventLog -LogName system -InstanceId 27 -Newest 1).TimeGenerated)); Write-Host $('Uptime since system resumed: {0:c}' -f ((Get-Date)- (Get-EventLog -LogName system -Source 'Microsoft-Windows-Power-Troubleshooter' -Newest 1).TimeGenerated));"

I've modified the command a little bit to be more explicit and give you both pieces of information:

• Elapsed time since Windows booted (either after a hybrid shutdown, full shutdown or simple reboot or hibernation).

• Elapsed time since Windows resumed execution (after returning from sleep mode).

NOTE: If the system didn't sleep in between, both times will be the same.

Answer 2

Taken from here:

Check the Windows Event Log.

1. Press Windows Key+r

2. Enter in the box, %windir%\system32\eventvwr.msc /s

3. Click "Create Custom View..." on the right-hand side.

4. Set the settings like this:

5. Click OK

6. When prompted, give the custom view a name (this can be anything you want)

7. It will display the list of resume times

Answer 3

You should disable Hybrid-Boot and reboot. It should display the right uptime. Also, doing a full shutdown with shutdown /s /t 0 also works.

Answer 4

this also happens in older Version (XP, Vista,7) when you use hibernation. The time gets only reseted when you do a full boot, but the Win8 fast startup is no longer a full boot. It is a combination of logging the user off + Hibernation.