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Created October 16, 2025 05:37
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Script to resize Dev Drive on Windows 11
Raw
README.md

🪟 Resize Dev Drive on Windows 11

This script expands a Dev Drive (.vhdx) and resizes its partition to use the new space.

📌 Configuration

  • Path: C:\DevDrive\DEV.vhdx
  • Drive Letter: D:
  • New Size: 160GB (change in script if needed)

🚀 Usage

  1. Open PowerShell as Administrator.
  2. Run: 
    Set-ExecutionPolicy Bypass -Scope Process -Force
.\resize-dev-drive.ps1

3. Wait for the process to complete.
4. Your Dev Drive will now reflect the new size in File Explorer.

## ⚠️ Notes

* You can only **increase**, not shrink, the `.vhdx`.
* Ensure no processes are using the Dev Drive before running.
* Adjust `$newSize` in the script if you want a different size.

## 🧰 Commands used

```powershell
Dismount-VHD -Path "C:\DevDrive\DEV.vhdx"
Resize-VHD -Path "C:\DevDrive\DEV.vhdx" -SizeBytes 160GB
Mount-VHD -Path "C:\DevDrive\DEV.vhdx"
Get-Partition -DriveLetter D | Resize-Partition -Size 160GB
```
Raw
resize-dev-drive.ps1
# ------------------------------------------------------------
# Resize Dev Drive on Windows 11
# Path: C:\DevDrive\DEV.vhdx
# Drive Letter: D
# ------------------------------------------------------------
# Run this script in an elevated PowerShell (Run as Administrator)
# 1. Define variables
$path = "C:\DevDrive\DEV.vhdx"
$newSize = 160GB # 💡 Change this to your target size
Write-Host "🚀 Starting Dev Drive resize process..." -ForegroundColor Cyan
# 2. Dismount the VHD if mounted
Write-Host "📦 Dismounting VHD..."
Dismount-VHD -Path $path -ErrorAction SilentlyContinue
# 3. Resize the VHD
Write-Host "📏 Resizing VHD to $newSize..."
Resize-VHD -Path $path -SizeBytes $newSize
# 4. Mount the VHD again
Write-Host "🔄 Mounting VHD..."
Mount-VHD -Path $path
# 5. Extend the partition to use the new space
Write-Host "📈 Extending partition on drive D..."
Get-Partition -DriveLetter D | Resize-Partition -Size $newSize
Write-Host "✅ Done! Dev Drive resized to $newSize." -ForegroundColor Green
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