Running Local AI on Windows 10/11: The No-BS Setup Guide
Running local AI on Windows is easier than it has ever been. Windows 10/11 is the dominant OS for offline AI use, partly because most of the world's laptops run it and partly because USB-based tools like PortableMind are optimized for the Windows launcher flow. Whether you want a one-click solution or a full DIY install, here's the complete no-BS guide.
TL;DRTwo solid paths to local AI on Windows 10/11: a plug-and-run offline AI USB (fastest, no install) or Ollama (free, more setup). Both run fully offline; expect a SmartScreen approval on first launch either way.
Option 1: Local AI on Windows via USB (fastest path)
The fastest way to run local AI on Windows: plug in a PortableMind USB, run Start-PortableMind.bat, click 'More info → Run anyway' on the SmartScreen prompt, and AI boots in 15-40 seconds.
This is genuinely plug-and-run. No Defender configuration, no model downloads, no Python installs. The launcher handles everything.
- Start-PortableMind.bat handles setup automatically.
- SmartScreen prompt: click 'More info → Run anyway' once.
- 15-40 second boot time on first launch.
- Keep USB plugged in while using AI, launcher runs locally from the drive.
Option 2: Ollama on Windows
Download the Ollama Windows installer from ollama.com. Run the installer, it sets up the runtime and registers Ollama as a service.
Pull your first model: open PowerShell or CMD and run 'ollama pull llama3'. This downloads ~4.7 GB. After that, 'ollama run llama3' gives you a local AI chat interface.
For a GUI, Open WebUI or AnythingLLM can connect to your local Ollama instance.
Handling Windows Defender and SmartScreen
Windows Defender and SmartScreen will flag unsigned offline AI tools, including some Ollama-based launchers. This is expected behavior, not a security issue, when the software comes from a known source.
For PortableMind: click 'More info → Run anyway' on SmartScreen. Add the PORTABLEMIND drive as a trusted location in Windows Security settings to stop Defender from quarantining files.
For Ollama: the installer is signed and won't trigger SmartScreen. Third-party GUI tools may need the same 'More info → Run anyway' treatment.
Performance on Windows: what to expect
On a mid-range Windows laptop (Intel Core i5, 8 GB RAM, USB 3.x): expect 5-12 tokens/second with a 7B quantized model. That's fast enough for real work, writing, Q&A, summarization.
On higher-end hardware (AMD Ryzen 7, 16 GB RAM, dedicated GPU): 20-40 tokens/second with GPU acceleration. PortableMind and Ollama both support GPU offloading.
Ready to run AI offline?
PortableMind is the plug-and-run offline AI USB. Go Digital for $69 and flash your own drive, or get the $99 v1.8.0 USB (voice, SCOUT Vision field modes, multi-modal chat, in-app Model Manager) or MAX-SPEED for power users. No internet, no subscription.
Conclusion
Running local AI on Windows in 2026 is straightforward. SmartScreen warnings are a one-time hurdle, not a real barrier. Start with a USB for instant results or install Ollama if you want a permanent local setup, either way, you have fully offline AI on your Windows machine today.
PortableMind Windows setup guide, step by step →Frequently asked questions
Long-tail answers for the search queries around this topic.
- Can Windows 10/11 run local AI?
- Yes. Both Ollama and PortableMind run on Windows 10 and Windows 11 without modification.
- How do I fix the SmartScreen warning for offline AI tools?
- Click 'More info → Run anyway'. For PortableMind, add the PORTABLEMIND drive as a trusted location in Windows Security settings.
- What local AI tool works best on Windows?
- PortableMind for plug-and-run (no setup). Ollama + Open WebUI for technical users who want a free, customizable stack.
- Does local AI use the GPU on Windows?
- Yes, Ollama supports CUDA (NVIDIA) and ROCm (AMD) GPU acceleration on Windows. PortableMind uses the same GPU offloading path.
- How much RAM do I need to run AI locally on Windows?
- 8 GB minimum for small quantized models. 16 GB+ recommended for better performance and larger context windows.
- Is Ollama free on Windows?
- Yes. Ollama is free and open source on Windows. You need to download model files separately (~4-8 GB per model).
Carson Dresser created the first offline AI USB. He builds from South Florida, where hurricane season makes losing power a lived reality rather than a thought experiment, and he watched cloud AI fail people at the worst possible moments: locked accounts, surprise price hikes, assistants that vanish with the signal. In 2025 he decided intelligence should be something you own, and shipped it. Working alone, he engineered the firmware, tuned the local models, wrote the desktop app, and built the over-the-air update system that delivers cryptographically signed payloads to drives already in the field. He also designed the product, built this website, and runs the store, the kind of range that usually takes a company. Before PortableMind he built ClipStitcher and a stack of practical automations for creators and small operators. Every order that ships and every support email still goes through Carson personally.