Newly installed Windows 10 20H2 - automatically turns on after 24 hrs?

I've recently installed 20H2 from an ISO and configured to my preference.

However, I've noticed that when I 'shutdown' and leave it plugged in without turning off the power supply, the system would automatically turn itself on exactly 24 hours later.

I've noticed / tested this over the past few days. From a power saving aspect, everything is as default set by Windows 10.

Is this an anomaly or a known issue?

MS are doing exactly the same as Google does for Android, they don't want you to turn off you PC, so that they can (so they say) keep you PC up to date, where as in fact they don't want you to turn off your PC, because they want to monitor what your computer is doing.

I had the exact same problem with 1909, and earlier versions, but it didn't happen with Win7, and I had power savings all disabled and WOL (Wake On Lan) also disabled, and yet it turned itself on after 24hrs, so I physically removed the power cord from the back of the PC, but every time I turned it back on, it kept telling me there was updates, even if the PC was turned off for a couple of hours, but if it was left on, there was no updates,,, which seems fishy to me, the exact same goes for my Android device too.

Hi Paul - really appreciate your help and guidance.

Below are the results from that system. Note under Power Scheme GUID, I've removed details as not sure if it's an identifable string - hope you don't mind and hope it doesn't affect diagnosis?

Code:

Microsoft Windows [Version 10.0.19042.928]
(c) Microsoft Corporation. All rights reserved.

C:\Windows\system32>powercfg -DeviceQuery Wake_Armed
HID Keyboard Device
HID-compliant mouse


C:\Windows\system32>powercfg -DeviceQuery Wake_From_Any
USB Root Hub
HID Keyboard Device
USB Input Device
PCI-to-PCI Bridge
Generic USB Hub
USB Composite Device
USB Input Device (001)
Generic USB Hub (001)
HID-compliant vendor-defined device
High Definition Audio Controller
High Definition Audio Device
USB Input Device (002)
HID-compliant system controller
USB Root Hub (001)
Standard Enhanced PCI to USB Host Controller
PCI-to-PCI Bridge (001)
USB Root Hub (USB 3.0)
Standard Enhanced PCI to USB Host Controller (001)
PCI-to-PCI Bridge (002)
HID-compliant consumer control device
PCI-to-PCI Bridge (003)
HID-compliant mouse
Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)


C:\Windows\system32>powercfg -DeviceQuery Wake_Programmable
HID Keyboard Device
HID-compliant vendor-defined device
HID-compliant system controller
HID-compliant consumer control device
HID-compliant mouse


C:\Windows\system32>powercfg -LastWake
Wake History Count - 1
Wake History [0]
  Wake Source Count - 0

C:\Windows\system32>powercfg -List

Existing Power Schemes (* Active)
-----------------------------------
Power Scheme GUID: ---------------  (Balanced) *
Power Scheme GUID: ---------------  (High performance)
Power Scheme GUID: ---------------  (Power saver)

C:\Windows\system32>powercfg -Requests
DISPLAY:
None.

SYSTEM:
None.

AWAYMODE:
None.

EXECUTION:
None.

PERFBOOST:
None.

ACTIVELOCKSCREEN:
None.


C:\Windows\system32>powercfg /RequestsOverride
[SERVICE]

[PROCESS]

[DRIVER]


C:\Windows\system32>powercfg -WakeTimers

- - - Updated - - -

- - - Updated - - -

- - - Updated - - -

- - - Updated - - -

MrTrippy said:

MS are doing exactly the same as Google does for Android, they don't want you to turn off you PC, so that they can (so they say) keep you PC up to date, where as in fact they don't want you to turn off your PC, because they want to monitor what your computer is doing.

I had the exact same problem with 1909, and earlier versions, but it didn't happen with Win7, and I had power savings all disabled and WOL (Wake On Lan) also disabled, and yet it turned itself on after 24hrs, so I physically removed the power cord from the back of the PC, but every time I turned it back on, it kept telling me there was updates, even if the PC was turned off for a couple of hours, but if it was left on, there was no updates,,, which seems fishy to me, the exact same goes for my Android device too.

That's interesting and you may have a point.

However, I've not noticed this happening on an old system running 1803.

Wisewiz said:

I don't see anything in your My Computer space. Is your machine an HP computer? My HPs did that and I found the problem in the BIOS. If yours is an HP Compaq, I can help.

I should also ask whether your machine had a previous owner.

I have two refurbs that came with a lot of settings I had to reset. Previous owners had needs I don't have.

I was a brand, spanking, new machine, I was lucky to have bought it a few days after a bulk delivery to the store, which meant it wasn't a return, and yes it is an HP, these are the specs:-

HP Pavillion, Model p6-2143w
Quad Core AMD A6-3650 2.6Ghz APU with inbuilt Radeon GPU with 4 physical cores and 4 logical cores.
BIOS Version/Date AMI 7.10, 4/19/2012
OS Name Microsoft Windows 10 Home
Version 10.0.18363 Build 18363 - Version 1909
BaseBoard Manufacturer PEGATRON CORPORATION
Installed Physical Memory (RAM) 8.00 GB
1TB SATA HDD partitioned with a win7 recovery partition.

OS is booted from MBR not UEFI

I've had this PC for around 5 years, even with same HDD, S.M.A.R.T. does show any errors at all.

Sounds like an alarm or wake timer of some sort...turn fast boot off if it's enabled. All "fast boot" does is store you ram set to disk so it can boot quicker to the state you left it in instead of reloading stuff from scratch.

So in your case if you have fast boot enabled then whatever's triggering it to wake is not actually being "shut down"...i think.

(I know this doesn't pin point your issue but it may stop it from happening until you get er figured)...may be worth going thru device manager & looking at properties on things like your network adapters & making sure they're not set to wake your machine under the Power Management tab.