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Windows/Powershell Cheat Sheet

Get Windows Product Key

(Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform").BackupProductKeyDefault

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Migrate a Proxmox VM from SeaBIOS to OVMF (UEFI)

• Under the VM's Hardware tab, change BIOS from Default (SeaBIOS) to OVMF (UEFI) in the Proxmox web UI
• Click Add at the top and select EFI Disk. Select a location and click OK.
• Boot the VM using Boot Repair Disk. Alternatively, boot any live CD and install the Boot Repair tool. Instructions for Ubuntu here: https://help.ubuntu.com/community/Boot-Repair
• Use Gparted or your favourite partitioning tool to create an EFI partition. Note: You may need to resize your disk and adjust your partition layout.
• Run the Boot Repair tool and choose the recommended option. Follow the instructions

NB: This works on a disk partitioned using MBR.

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Mount SMB share as non-root user with write permissions

sudo mount -t cifs -o "uid=$local_user,username=$smb_user,addr=$host,vers=1.0" //$host/$share $mount_path

Note

vers=1.0 only applies because I have a very old NAS running SMB 1.0.
Yes, it's insecure. No, it can't be updated. Yes, it's in the process of being retired.

For errors:

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Get WAN IP

nslookup myip.opendns.com resolver1.opendns.com

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$wslAddress = wsl ip -4 a show eth0 | wsl grep -Po 'inet \K[0-9.]*'

# This assumes you only have one interface containing 'WSL' in its name
$ifId = (Get-NetIPInterface -InterfaceAlias "*WSL*" -AddressFamily IPv4).ifIndex

route add -p $wslAddress mask 255.255.255.255 $wslAddress metric 256 if $ifId

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$repo = $args[0];
$outdir = $args[1]
$release = (curl -s https://api.github.com/repos/scito/extract_otp_secrets/releases/latest | ConvertFrom-Json).assets | where { $_.name -like "*.msi" -or $_.name -like "*.exe" }
# TODO: check there's only one item
$outFile = "$outdir\$($release.name)";
curl -L $release.browser_download_url --output $outFile;
& $outFile

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#Requires AutoHotkey v2.0
#SingleInstance

Run "powershell -NoExit C:\Users\Ammaar.Limbada\Register-KvmEvents.ps1", , "Hide"
Persistent

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# Use Get-PnpDevice with no parameters to get the name of the device
Get-PnpDevice -FriendlyName "AMD Radeon RX 6700" | Disable-PnpDevice -Confirm:$false ; Sleep -Seconds 5; Get-PnpDevice -FriendlyName "AMD Radeon RX 6700" | Enable-PnpDevice -Confirm:$false

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Register-WmiEvent -Query "SELECT * FROM __InstanceCreationEvent WITHIN 1 WHERE TargetInstance ISA 'win32_PNPEntity' AND TargetInstance.DeviceID like 'USB\\VID_045B&PID_0209%'" -SourceIdentifier KVMConnected -Action { lgtv --name MyTV --ssl setInput HDMI_4 }

Register-WmiEvent -Query "SELECT * FROM __InstanceDeletionEvent WITHIN 1 WHERE TargetInstance ISA 'win32_PNPEntity' AND TargetInstance.DeviceID like 'USB\\VID_045B&PID_0209%'" -SourceIdentifier KVMDisonnected -Action { lgtv --name MyTV --ssl setInput HDMI_3 }

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