Windows 10

Tips

Restart in BIOS

Click Restart while holding Shift. This should go to advanced restart menu, and select UEFI thingy.

... this works only from LOGIN screen it seems...

Press Win key, then search for bios. This should prompt for advanced start-up options.

Restart with USB

Click Restart while holding Shift. This should go to advanced restart menu, and select restart in USB thingy.

... this works only from LOGIN screen it seems...

How-to

Disable / remove BitLocker

To remove BitLocker from drive C:

Disable-BitLocker -MountPoint "C:"          # Or: manage-bde -off C:
manage-bde -status
# Wait for completion

To be completed

Shortcut for sleep

Press Win-X, then U, then S [1].
Press Win-D to show the desktop and make sure no windows is in the focus, then Alt-F4. Select sleep.

Manage sleep

References: [2]

Use powercfg commands:

powercfg /requests to show what applications are making requests, that prevents currently the PC to go to sleep.
powercfg -lastwake to show the event that triggered the last wake up.
powercfg -devicequery wake_armed to view which devices are allowed to wake the PC.
powercfg -waketimers to view the wake timers.

To see power related events:

Open event viewer.
Select Event Viewer (Local) > Windows Logs > System.
Right click System, and select Filter Current Log.
In even source, select Power-Troubleshooter.

To prevent a device from waking up the PC:

Go to Device Manager.
Select the devices, then Properties.
In the Power Management tab, uncheck Allow this device to wake the computer.

To disable Wake timer:

Go to Task Scheduler.
Select the task.
Uncheck Wake the computer to run this task.

To disable all wake timers:

Go to power options.
Select Sleep, Allow wake timers, select Disable

To disable wake for maintenance:

Go to Security and Maintenance
Click the up arrow on the right of Maintenance.
This opens up Automatic Maintenance.
Uncheck Allow scheduled maintenance to wake up my computer at the scheduled time.

Set default browser via the Command-line

Reference:

Create a script setbrowser.bat, and save it to %APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup:

   "C:\Program Files\SetDefaultBrowser\SetDefaultBrowser.exe" HKLM "Google Chrome"

Create a symbolic link

In Power shell

if (Test-Path "C:\Users\$env:UserName\Some\Path") {
    new-item -itemtype symboliclink -path 'C:\Some\' -name SomeName -value "C:\Users\$env:UserName\Some\Path" -force
}

Troubleshoot

Search bar not responding in start menu

Reference [3].

Must disable Bing search:

REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Search /v BingSearchEnabled /t REG_DWORD /d 0 /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Search /v CortanaConsent /t REG_DWORD /d 0 /f