Windows

Energy management

Why computer was woken from sleep

To check why computer was woken from suspend:

powercfg /lastwake

to get more details:

powercfg /systempowerreport

To disable Windows Update waking up the computer

Run as Administrator:

gpedit.msc

Then go to:

Computer Configuration / Administrative Templates / Windows Components / Windows Update / Enabling Windows Update Power Management to automatically wake up the system to install scheduled updates

and set it to "Disabled".

For swedish Windows:

Datorkonfiguration / Administrativa mallar / Windows-komponenter / Windows Update / Aktivera automatisk väckning via Energisparfunktioner för installation av schemalagda uppdateringar

and set it to "Inaktiverad".

To disable hibernation

powercfg.exe /h off

To uninstall a specific driver

In a elevated command prompt:

dism /online /get-drivers /format:table > c:\drivers.txt

Look through the drivers.txt file, and then you can do things like:

pnputil.exe /d oem111.inf

To enable DHCP

Install a simple DHCP server like: https://www.hanewin.net/dhcp-e.htm

To install Windows 11 on an unsupported CPU

Don't know if all of these steps are required, but they worked!

• Download a Windows 11 ISO file.
• Use Rufus to write the ISO to a USB drive. After hitting "Start", select the tick box to skip TPM/CPU verification.
• In the running Windows x system, add the following register keys:

HKEY_LOCAL_MACHINE\SYSTEM\Setup\LabConfig\BypassCPUCheck=1
HKEY_LOCAL_MACHINE\SYSTEM\Setup\LabConfig\BypassTPMCheck=1

• If you want to install Windows 11 from scratch, boot from the USB drive.
• If you want to upgrade, run setup.exe from the USB drive in the running system.