Switch RAID to AHCI Without Reinstalling Windows
Changing RAID or Intel RST to AHCI stops Windows on a blue screen? Set Safe Mode with bcdedit first, switch the BIOS, let Safe Mode load the driver, then remove the flag.
Task Host Window Stopping Shutdown? Find the Task First
Task Host Window stops your shutdown? Read the task name, turn off the sign-in info switch, test a full shutdown, then decide on fast startup.
BitLocker Waiting for Activation? Your Drive Is Half Done
BitLocker waiting for activation means the drive is encrypted but its key sits in the clear. Finish it with a recovery key, or turn it off with manage-bde -off.
Changed WindowsApps Permissions? Put the Owner Back
Took ownership of the WindowsApps folder? Skip icacls /reset /t, write the folder rules back with the cacls SDDL line, and give ownership back to TrustedInstaller.
vEthernet (Default Switch) Keeps Coming Back? Find Its Owner
vEthernet (Default Switch) returns after you delete it? A Windows feature built on Hyper-V rebuilds it at startup. Untick that feature, then clear the leftover adapters.
Unknown Locale (qaa-Latn) in Your Keyboard List? Remove It
Unknown Locale (qaa-Latn) sits in your language switcher but not in Settings? Add it in Windows PowerShell and remove it, or reset the list to one language.
L2TP VPN Works on Your Phone, Not Windows? One Value
L2TP/IPsec VPN connects on your phone but fails on Windows? Set AssumeUDPEncapsulationContextOnSendRule to 2, restart, then check the IPsec services and sign-in.
CredSSP Encryption Oracle Remediation? Update the Other PC
Remote Desktop blames CredSSP encryption oracle remediation? Update the PC you connect to, use AllowEncryptionOracle 2 only as a bridge, then check NLA.
Bootrec /fixboot Access Is Denied? Use bcdboot Instead
bootrec /fixboot says Access is denied in recovery? Find your Windows drive letter, run bcdboot on the Windows folder, and rebuild the EFI partition only if copying fails.
Bluetooth Headphones Not in Sound Output? Tick Audio Sink
Bluetooth headphones connected but missing from the sound output list? Tick Audio Sink on the Services tab, turn Bluetooth off and on, then reinstall the drivers.