How to Write Installation and Setup Guides That Prevent Support Tickets

Your new user downloads your software, clicks through the installer, and launches the app. A configuration screen appears asking for an API key. Where do they get that? They check your website. Nothing obvious. They Google it. They find a forum post from 2 years ago with outdated instructions. 30 minutes later, they give up and request a refund.

This isn't a product problem. It's a documentation problem. The installation worked fine. The configuration screen was clear. But your setup guide didn't tell users where to find their API key, so they got stuck.

Installation and setup guides are where users form their first impression of your product. Get them working quickly and they'll love you. Leave them confused and they'll churn before experiencing any value. This guide breaks down how to write installation documentation that gets users from zero to working product without support tickets.

Why Installation Guides Need to Be Excellent

Installation is the highest-friction point in your user journey. Users are motivated to get started, but they're also most likely to abandon if they encounter problems.

Good installation guides reduce this friction by:

• Setting clear expectations: Time required, difficulty level, what users need before starting
• Preventing confusion: Step-by-step instructions with expected outcomes
• Addressing problems proactively: Troubleshooting common issues before users hit them
• Building confidence: Verification steps that confirm everything worked

Bad installation guides create support tickets, negative reviews, and refund requests. Users don't distinguish between "the product doesn't work" and "I couldn't figure out how to install it." Both result in abandonment.

Start with Prerequisites and Requirements

Don't let users get halfway through installation before discovering they need something they don't have. List all prerequisites up front.

System Requirements

Be specific about minimum and recommended specs:

Bad:
Requires recent operating system

Good:
Minimum:
• Operating System: Windows 10, macOS 10.15, or Ubuntu 20.04+
• RAM: 4GB
• Disk Space: 500MB
• Internet connection

Recommended:
• RAM: 8GB+
• SSD storage

Users can make informed decisions about whether to proceed based on their system.

Prerequisites

What needs to be installed first?

You'll need:
• Node.js 16+ - Download from nodejs.org
• npm 7+ (included with Node.js)
• A River account - Sign up for free at river.ai

Include links to installation guides for prerequisites. Don't assume users know where to get them.

What to Have Ready

Information users should prepare before starting:

Have these ready:
• Your API key (found in Settings > API)
• Database connection string
• Admin credentials

This prevents users from getting stuck mid-installation because they need to go find something.

Structure Installation Steps Clearly

Installation steps should be numbered, sequential, and specific. One action per step.

The Step Format That Works

Each step should have:

1. Clear action: What to do
2. Instructions: How to do it
3. Expected result: What should happen
4. Visual aid: Screenshot if helpful

Example - Software Installation:

Step 1: Download the installer

Download the latest version for your operating system.

Windows:
1. Go to river.ai/download
2. Click "Download for Windows"
3. Save the .exe file to your Downloads folder

Expected result: You should see RiverSetup.exe in your Downloads folder.

Step 2: Run the installer

1. Double-click RiverSetup.exe
2. Click "Yes" when prompted by User Account Control
3. Follow the installation wizard
4. Click "Install" (default location is recommended)
5. Wait for installation to complete (~2 minutes)
6. Click "Finish"

Expected result: River should open and show the welcome screen.

Be Specific About Actions

Vague instructions create confusion:

❌ "Configure the settings"
✅ "Go to Settings > API and paste your API key in the 'API Key' field"

❌ "Set up your database"
✅ "Open .env file and add your database URL: DATABASE_URL=postgresql://..."

Specific instructions tell users exactly where to click and what to type.

Show Expected Results for Each Step

Users need to know if each step worked before moving to the next one. Show them what success looks like.

For CLI Commands

Show the expected terminal output:

Run:
```
npm install -g @river/cli
```

Expected output:
```
added 47 packages in 3s
```

If users don't see this output, they know something went wrong and can check before proceeding.

For GUI Steps

Describe what users should see:

Expected result: You'll see your dashboard with a "Welcome back!" message in the top-right corner.

Or use screenshots with arrows pointing to the relevant elements.

For Configuration

Show sample output or confirmation:

After saving, you should see:
✓ Configuration saved successfully
✓ Connected to database

Address Platform Differences

If installation differs by operating system, make platform-specific instructions easy to find.

Option 1: Tabs or Sections

Windows
[Windows-specific instructions]

macOS
[Mac-specific instructions]

Linux
[Linux-specific instructions]

Users can jump directly to their platform without wading through irrelevant instructions.

Option 2: Inline Differentiation

For steps that are mostly similar:

Step 3: Open the terminal

• Windows: Press Win + R, type "cmd", press Enter
• Mac: Press Cmd + Space, type "terminal", press Enter
• Linux: Press Ctrl + Alt + T

Include Comprehensive Troubleshooting

Don't wait for users to contact support. Address common problems in the guide.

Troubleshooting Structure

For each common issue:

Problem: [Error message or symptom]

Symptoms:
• [What users see]
• [Error message]

Cause:
[Why this happens]

Solution:
1. [Step to fix]
2. [Verification that it worked]

Example

Problem: "Command not found: river"

Symptoms:
• Terminal says "river: command not found"
• Running `river --version` doesn't work

Cause:
The CLI wasn't installed globally, or your PATH isn't configured correctly.

Solution:

Option 1: Reinstall globally

npm install -g @river/cli

Make sure you use the `-g` flag (global installation).

Verify:

river --version

Should now show the version number.

Still not working? Contact support at support@river.ai

Anticipate Edge Cases

What problems do users commonly encounter? Check your support tickets and add those to troubleshooting:

• Permission errors ("EACCES: permission denied")
• Port conflicts ("Port 3000 already in use")
• Missing environment variables
• Firewall blocking connections
• Antivirus quarantining files

Verify Installation Worked

End with verification steps that confirm everything is working correctly.

Basic Functionality Test

Verify Your Installation

Test 1: Create a project
1. Click "New Project" in the dashboard
2. Enter a project name
3. Click "Create"

✓ Success: You should see your new project in the project list
❌ Failed: If you see an error, check that you're signed in and have an active subscription

Feature Test

Test 2: Run a command
1. Open your terminal
2. Run: river test
3. You should see: "✓ River CLI is working correctly"

✓ Success: CLI is properly configured
❌ Failed: See troubleshooting section below

Verification builds user confidence that everything worked and helps catch problems before users try to use the product seriously.

Guide Users to First Success

Don't end at "installation complete." Show users what to do next.

Quick Start

You're All Set!

Get started in 5 minutes:
1. Create your first project - Tutorial
2. Invite team members - Tutorial
3. Configure integrations - Tutorial

Next Steps

Tutorials:
• Getting Started Guide (10 minutes)
• Core Features Overview (15 minutes)
• Advanced Configuration (30 minutes)

Resources:
• Documentation
• Video tutorials
• Community forum
• Support: support@company.com

This bridges the gap between "installed" and "getting value."

Writing Style for Installation Guides

Be Direct and Specific

❌ "You might want to consider downloading the file"
✅ "Download the installer"

❌ "Navigate to the configuration area"
✅ "Go to Settings > Configuration"

Use Active Voice

❌ "The file should be downloaded"
✅ "Download the file"

Explain the Why When Helpful

"Run `npm install` to download all required dependencies (this takes about 2 minutes)"

Brief context helps users understand what's happening and manage expectations.

Anticipate Confusion

If a step commonly confuses users, address it:

"Note: The installer may take a minute to start. This is normal—don't click multiple times."

Include Uninstallation Instructions

Users should be able to cleanly remove your product if needed.

Uninstalling

Windows:
1. Open Settings > Apps
2. Find "River" in the list
3. Click "Uninstall"
4. Follow the prompts

Remove all data:
Delete: C:\Users\[YourName]\AppData\Roaming\River

macOS:
1. Open Applications folder
2. Drag River to Trash
3. Empty Trash

Remove all data:
rm -rf ~/Library/Application\ Support/River

Test Your Instructions

The only way to know if your installation guide works is to follow it yourself.

Test on clean systems: Use a fresh VM or borrow someone's computer. Your development machine has dependencies already installed that new users won't have.

Time each step: Update your time estimates based on actual timing.

Watch someone else follow the guide: Don't help them. Just watch where they get confused. Those are the gaps in your documentation.

Update when things change: Product updates, UI changes, and new platforms all require documentation updates.

Common Installation Guide Mistakes

Assuming prerequisite knowledge: "Install Node.js" without linking to instructions.

Skipping platform differences: Giving only Linux instructions when you support Windows and Mac.

No expected results: Users don't know if steps worked.

Missing troubleshooting: Users hit errors and have no guidance.

Outdated screenshots: UI changed but documentation didn't.

Too technical: Jargon that beginners don't understand.

No time estimates: Users don't know how long installation takes.

Key Takeaways

Installation guides should start with prerequisites and system requirements so users know what they need before beginning. Time estimates and difficulty levels set expectations.

Structure steps clearly with one action per step, specific instructions (not vague directions), expected results after each step, and screenshots or terminal output examples where helpful.

Address platform differences explicitly with tabs or sections for Windows, Mac, and Linux. Don't make users wade through irrelevant instructions for other platforms.

Include comprehensive troubleshooting for common errors: permission issues, port conflicts, missing dependencies, network problems. Each issue should have symptoms, cause, and solution.

Verify installation worked with basic functionality tests and feature tests. End with clear next steps guiding users to their first success.

The installation guides that prevent support tickets are tested on clean systems, updated when products change, and written from the user's perspective—not the developer's.