Chat with Your Own Documents Offline Using NVIDIA ChatRTX
Learn how to privately ask questions about your personal files directly on your Windows computer, no internet needed, with NVIDIA ChatRTX.
Have you ever wished you could ask questions about your personal notes, work documents, or research papers without uploading them to an online AI? This guide will show you how to do exactly that using NVIDIA ChatRTX. You'll be able to point this powerful AI tool at a folder on your Windows computer and chat with your documents completely offline and privately.
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- A powerful NVIDIA RTX GPU: This tool requires a desktop PC with an NVIDIA RTX 30-series or 40-series GPU (graphics processing unit – this is the specialised chip that handles graphics and complex calculations) with at least 8GB of VRAM (the video random access memory, which is the memory on the graphics card itself). Check your computer's specifications to ensure compatibility.
- Windows 10 or 11: ChatRTX is designed for Windows operating systems.
- NVIDIA drivers: Make sure your NVIDIA graphics drivers are up to date. You can usually update these through the NVIDIA GeForce Experience application or NVIDIA's website.
- ChatRTX software: You'll need to download and install the free ChatRTX application from the NVIDIA website. It's a large download, so ensure you have enough space and a stable internet connection for the initial download.
- Documents to chat with: Have a folder ready with some text-based documents (like PDFs, TXT, DOCX files) you want to ask questions about.
- Rough total time: Allow around 30-60 minutes for download, installation, and initial setup, plus extra time for the AI to process your documents.
Download and install ChatRTX
Your first step is to get the ChatRTX application onto your computer. Visit the official NVIDIA website and look for the ChatRTX download page. Once you find it, download the installer file. This file will be quite large, often several gigabytes, so it might take a while depending on your internet speed. Once the download is complete, find the downloaded file (it's usually in your "Downloads" folder, often named something like NVIDIA_ChatRTX_Installer.exe) and double-click it to start the installation process. Follow the on-screen prompts, agreeing to the terms and conditions and choosing an installation location if asked. It will extract necessary files and then install the application.
If it looks different: If you can't easily find the ChatRTX page, try searching "NVIDIA ChatRTX" directly on the NVIDIA website. The installation process might ask for administrator permission to make changes to your system, so click "Yes" if prompted to proceed.
You'll know it worked when: The installer shows a "Installation Complete" or "Finish" message, and you can see an NVIDIA ChatRTX icon on your desktop or in your Start Menu.

Launch ChatRTX and load the core AI models
Now that ChatRTX is installed, it's time to open it up. Find the ChatRTX icon on your desktop or in your Start Menu and double-click it. The very first time you launch the application, you will see a command-line window might pop up briefly, followed by the main ChatRTX application window. The window will likely show a loading animation or progress bar, indicating that the core AI "models" are being downloaded and prepared. Think of these models as the AI's brain and knowledge base – the fundamental library of information it needs to function. This process can take a significant amount of time (even 10-30 minutes or more), and your computer's fans might get quite loud as your graphics card works hard.
What happens next: The application will begin downloading and configuring the necessary AI components locally on your computer. You won't be able to interact with the chat interface until this is complete.
If it looks different: If the application seems stuck or crashes during this loading phase, ensure your NVIDIA drivers are up to date and your GPU meets the minimum requirements. Try restarting your computer and launching ChatRTX again.
You'll know it worked when: The main ChatRTX interface appears, usually with a chat input box at the bottom and possibly some default "knowledge base" options, indicating the core AI models are ready.

Select your document folder (the "knowledge base")
Now it's time to tell ChatRTX which documents you want it to learn from. In the ChatRTX interface, look for a section related to "Knowledge Base" or "Add Content." This is where you'll point the AI to your personal library of information. You will see on the left-hand side or at the top of the ChatRTX window, there's usually a panel or button labelled "Knowledge Base" or "Data Source." Click on this. You'll then see an option to "Add Dataset" or "Browse Folder." Click this option to open a file explorer window. Navigate to the folder on your computer that holds your documents and select it. This tells ChatRTX where to find the information, which the AI will then use as its exclusive source for your questions.
What happens next: After you select your folder and confirm, the path to your chosen folder should appear in the "Knowledge Base" section.
If it looks different: If you don't see a clear "Knowledge Base" section, look for a "Settings" gear icon, or a menu icon (three lines or dots) which might lead you to content management options. Ensure your documents are in a common text format like PDF, TXT, or DOCX, as the AI might not understand all file types.
You'll know it worked when: The path to your chosen folder appears in the "Knowledge Base" section, and you might see a "Loading" or "Processing" indicator next to it.

Load your documents into the AI
Once you've selected your folder, ChatRTX needs to "ingest" your documents. Ingesting means the AI reads through all the files in the chosen folder, processes their content, and organises it in a way it can easily understand and recall. This is how the AI builds its unique understanding of your specific information. You will see, after selecting your folder, there might be a "Load" or "Process" button to click, or it might start automatically. A progress bar or a "processing files" message will usually appear, showing you how many documents it's working through. This process can take a while, especially if you have many documents or very long ones.
What happens next: ChatRTX reads each document, extracts its content, and prepares it for querying. During this time, your computer might be working hard, and you should avoid shutting down the application. Be patient, as it's doing a lot of behind-the-scenes work.
If it looks different: If it doesn't seem to start processing, ensure you've confirmed the folder selection and look for an explicit "Start" or "Ingest" button. If there's an error, check the file types in your folder – some versions of ChatRTX might only support specific text-based formats.
You'll know it worked when: The "processing" message disappears, and the status changes to "Ready" or "Loaded," indicating the AI has successfully learned from your documents.

Ask your first question about your documents
Now that your documents are loaded, you can finally start chatting with your personal AI! Head to the main chat area of the ChatRTX application. This is typically a large text box at the bottom of the screen where you can type your questions. You will see a blank chat input field, possibly with a placeholder like "Ask a question..." Ask something specific that you know is covered in your loaded documents.
What happens next: Type your question into the input field and press Enter (or click a "Send" button if one is present). The AI will process your question using only the knowledge from your documents and then provide an answer in the chat window. Remember, the AI can only use the information you've provided in the chosen folder; it doesn't connect to the internet for answers.
If it looks different: If the AI doesn't respond or gives a generic answer, ensure your documents are fully loaded (check the "Knowledge Base" status) and that your question directly relates to their content.
You'll know it worked when: ChatRTX provides a coherent, relevant answer based on the information it found within your loaded documents.

Experiment with follow-up and specific questions
The power of chatting with an AI comes from its ability to understand context. Once you've asked your first question and received an answer, you can ask follow-up questions that build on the previous conversation. You will see the previous question and answer history in the chat window, ready for your next input. Try to be specific, or ask for summaries or comparisons if your documents contain such information. Think of it as having a super-fast research assistant that only knows what you've given it.
What happens next: Type a new, related question into the chat input and press Enter. The AI will consider your current question in light of the previous conversation and the document content to give you an even more refined answer.
If it looks different: If the AI gets confused, try rephrasing your question more clearly or explicitly stating which document or topic you're referring to, if you know it. Sometimes, starting a new chat session (if available in the interface) can help clear the AI's short-term memory if it's struggling with the context.
You'll know it worked when: The AI gives you a useful answer that shows it understands the connection between your questions and the documents.

- Not meeting hardware requirements: ChatRTX is demanding and needs a specific NVIDIA GPU. If your computer doesn't meet the requirements, the application might crash, refuse to launch, or run extremely slowly. The fix: Double-check your GPU model and VRAM. If it's insufficient, ChatRTX might not be the right tool for your setup.
- Forgetting to load documents: The AI can't answer questions about your files until they've been fully "ingested" into its knowledge base. If you ask a question immediately after selecting a folder, it won't have the information yet. The fix: Always wait for the "Processing" or "Loading" indicator to change to "Ready" or "Loaded" before asking questions.
- Asking questions outside the loaded content: ChatRTX works only with the documents you provide. It doesn't connect to the internet or have general knowledge beyond its core AI models and your files. The fix: Ensure your questions are directly answerable by the text within your specified document folder. If you ask about current events or general knowledge, it won't be able to help.
Open ChatRTX, ensure your documents are loaded, and ask your AI: "What are the main topics discussed in these documents?" This will give you a quick overview of what your personal AI now "knows."
❓ Quick questions
How long does this take?
About 6 minutes — the guide has 6 steps, and you can tick each one off as you go.
Which tool do I need?
This guide uses NVIDIA ChatRTX — but the approach works very similarly in other AI assistants.
Do I need to prepare anything?
- A powerful NVIDIA RTX GPU: This tool requires a desktop PC with an NVIDIA RTX 30-series or 40-series GPU (graphics processing unit – this is the specialised chip that handles graphics and complex calculations) with at least 8GB of VRAM (the video random access memory, which is the memory on the graphics card itself). Check your computer's specifications to ensure compatibility.
- Windows 10 or 11: ChatRTX is designed for Windows operating systems.
- NVIDIA drivers: Make sure your NVIDIA graphics drivers are up to date. You can usually update these through the NVIDIA GeForce Experience application or NVIDIA's website.
- ChatRTX software: You'll need to download and install the free ChatRTX application from the NVIDIA website. It's a large download, so ensure you have enough space and a stable internet connection for the initial download.
- Documents to chat with: Have a folder ready with some text-based documents (like PDFs, TXT, DOCX files) you want to ask questions about.
- Rough total time: Allow around 30-60 minutes for download, installation, and initial setup, plus extra time for the AI to process your documents.
What mistakes should I avoid?
- Not meeting hardware requirements: ChatRTX is demanding and needs a specific NVIDIA GPU. If your computer doesn't meet the requirements, the application might crash, refuse to launch, or run extremely slowly. The fix: Double-check your GPU model and VRAM. If it's insufficient, ChatRTX might not be the right tool for your setup.
- Forgetting to load documents: The AI can't answer questions about your files until they've been fully "ingested" into its knowledge base. If you ask a question immediately after selecting a folder, it won't have the information yet. The fix: Always wait for the "Processing" or "Loading" indicator to change to "Ready" or "Loaded" before asking questions.
- Asking questions outside the loaded content: ChatRTX works only with the documents you provide. It doesn't connect to the internet or have general knowledge beyond its core AI models and your files. The fix: Ensure your questions are directly answerable by the text within your specified document folder. If you ask about current events or general knowledge, it won't be able to help.
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✦ Original step-by-step guide by AI World HQ's AI editorial team. Written in plain language, reviewed for accuracy.
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