1. Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your HP AIO 22-b402la All-in-One PC. Please read these instructions carefully to ensure proper use and longevity of your device.
2. Setup
2.1 Unpacking the PC
Carefully remove all components from the packaging. Ensure the following items are present:
- HP AIO 22-b402la All-in-One PC
- Power Adapter and Cable
- USB Keyboard
- USB Mouse
- Documentation (this manual, warranty information)
2.2 Connecting Peripherals
Connect the included USB keyboard and mouse to the available USB ports on the back of the All-in-One PC. Ensure the connections are secure.

Figure 2.2.1: Front view of the HP AIO 22-b402la All-in-One PC, showing the display, integrated webcam, and connected keyboard and mouse.
2.3 Power Connection
Connect the power cable to the power adapter, then connect the adapter to the power port on the back of the PC. Plug the other end of the power cable into a grounded electrical outlet.

Figure 2.3.1: Back view of the HP AIO 22-b402la All-in-One PC, highlighting the various ports for power, USB, and other connections.
2.4 Initial Power-On and Windows Setup
Press the power button, usually located on the side or bottom of the display. The PC will boot up, and you will be guided through the initial Windows 10 Home setup process. Follow the on-screen instructions to configure your language, region, network, and user account.
3. Operating
3.1 Basic Navigation
Your HP AIO PC runs Windows 10 Home. Use the connected mouse to navigate the desktop, open applications, and interact with menus. The keyboard is used for typing and executing commands.
3.2 Display Features
The PC features a 21.5-inch FHD IPS display, offering wide viewing angles and a resolution of 1920 x 1080. Adjust display settings (brightness, resolution) through Windows settings: Start Menu > Settings > System > Display.
3.3 Connecting to a Network
To connect to a wireless network (Wi-Fi):
- Click the Wi-Fi icon in the taskbar.
- Select your desired network from the list.
- Enter the network security key (password) if prompted.
- Click Connect.
For a wired connection, connect an Ethernet cable from your router to the Ethernet port on the back of the PC.
3.4 Using USB Ports
The PC is equipped with multiple USB ports for connecting external devices such as USB drives, printers, or additional peripherals. Simply plug the device into an available USB port.
4. Maintenance
4.1 Cleaning the PC
To clean the display, use a soft, lint-free cloth lightly dampened with water or a screen-cleaning solution. For the chassis, use a soft, dry cloth. Avoid abrasive cleaners or spraying liquids directly onto the PC.
4.2 Software Updates
Regularly update your Windows operating system and drivers to ensure optimal performance and security. Windows Update can be accessed via Start Menu > Settings > Update & Security > Windows Update.
4.3 Data Backup
It is recommended to regularly back up your important data to an external drive or cloud storage to prevent data loss.
5. Troubleshooting
This section addresses common issues you might encounter.
5.1 PC is Slow
- Check for background applications: Close unnecessary programs running in the background.
- Restart the PC: A simple restart can resolve many performance issues.
- Disk Space: Ensure you have sufficient free space on your hard drive.
- Updates: Make sure Windows and drivers are up to date.
5.2 No Display
- Power Check: Ensure the power cable is securely connected to both the PC and the electrical outlet.
- Power Button: Confirm the PC is powered on.
- Brightness: Adjust display brightness settings.
5.3 No Internet Connection
- Wi-Fi/Ethernet Check: Verify your Wi-Fi connection or Ethernet cable.
- Router/Modem: Restart your router and modem.
- Network Troubleshooter: Use the Windows Network Troubleshooter (Start Menu > Settings > Update & Security > Troubleshoot > Internet Connections).
6. Specifications
| Brand | HP |
| Model Name | 22-b402la |
| Operating System | Windows 10 Home |
| CPU Model | Intel Celeron (Dual-Core) |
| RAM | 4 GB DDR3 SDRAM |
| Storage | HDD |
| Screen Size | 21.5 Inches |
| Max Screen Resolution | 1920 x 1080 (FHD IPS) |
| Dimensions (L x W x H) | 53.9 x 18.5 x 39.9 cm |
| Color | Black |
| UPC | 194441288162 |
7. Warranty Information
Your HP AIO 22-b402la PC comes with a 1-year manufacturer's warranty. Please refer to the separate warranty document included with your product for detailed terms and conditions. Keep your proof of purchase for warranty claims.
8. Support
For further assistance, technical support, or service inquiries, please visit the official HP support website or contact HP customer service. You can find contact information and support resources on the HP website by searching for your product model, HP AIO 22-b402la.