Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Dell Inspiron 27 7720 All-in-One Desktop. Please read these instructions carefully to ensure optimal performance and longevity of your device.
What's in the Box
Your Dell Inspiron 27 7720 All-in-One Desktop package includes the following components:
- Dell Inspiron 27 7720 All-in-One Desktop
- Dell Pro Wireless White Keyboard
- Dell Wireless White Mouse
- Power Adapter
- Documentation

Image: The Dell Inspiron 27 7720 All-in-One Desktop, shown with its included wireless keyboard and mouse, ready for setup.
Setup Instructions
1. Unpacking and Placement
- Carefully remove all components from the packaging.
- Place the All-in-One desktop on a stable, flat surface. Ensure adequate ventilation around the device.
2. Connecting Peripherals
- Keyboard and Mouse: The included Dell Pro Wireless White Keyboard and Wireless White Mouse are pre-paired. Insert the USB receiver (usually found in the mouse or keyboard battery compartment) into an available USB port on the desktop.
- Power: Connect the power adapter to the power port on the back of the desktop, then plug it into a wall outlet.
- Network (Optional): For a wired internet connection, connect an Ethernet cable to the RJ-45 port on the back of the desktop. For wireless, the system supports Intel Wi-Fi 6E.
- External Devices: Utilize the various USB ports (1x USB 3 Gen 2 Type-A, 3x USB 3 Gen 1 Type-A, 1x USB 3 Gen 2 Type-C) and the HDMI 1.4 port for connecting external devices as needed. A 5-in-1 SD Card Reader is also available.

Image: The rear panel of the Dell Inspiron 27 7720, highlighting the various connectivity ports including USB, HDMI, Ethernet, and the SD card reader.
3. Initial Power-On
- Press the power button, typically located on the bottom right side of the display bezel.
- Follow the on-screen instructions to complete the Windows 11 Pro setup.
Operating Your Desktop
Touchscreen Functionality
Your Dell Inspiron 27 7720 features a 27-inch Full HD touchscreen display. This allows for intuitive interaction with Windows 11 Pro and various applications using gestures similar to a tablet or smartphone. You can tap, swipe, pinch-to-zoom, and scroll directly on the screen.
Video: A demonstration of the touchscreen functionality on the Dell Inspiron 27 7720, showing how to navigate the desktop and open applications using touch gestures.
Windows 11 Pro
The desktop comes pre-installed with Windows 11 Pro, offering advanced features for productivity and security. Familiarize yourself with the new interface, including the centered Start menu and Snap Layouts for efficient multitasking.
Integrated Webcam
The integrated webcam is designed to pop up from the top bezel when needed and can be pushed back down for privacy. This feature ensures your privacy when the camera is not in use.
Maintenance and Care
Cleaning the Display
- Turn off the computer and unplug the power cord.
- Use a soft, lint-free cloth lightly dampened with water or a non-abrasive screen cleaner.
- Wipe the screen gently to remove dust and smudges. Avoid harsh chemicals.
General Cleaning
- Use a soft, dry cloth to clean the exterior surfaces of the desktop, keyboard, and mouse.
- Periodically use compressed air to clear dust from ventilation openings to prevent overheating.
Software Updates
- Regularly check for and install Windows updates to ensure system stability and security.
- Keep your drivers updated through Dell's official support website or Dell Update utility.
Data Backup
Regularly back up your important files to an external drive or cloud storage to prevent data loss.
Troubleshooting Common Issues
No Power / System Not Starting
- Ensure the power cable is securely connected to both the desktop and the wall outlet.
- Verify the wall outlet is functional by plugging in another device.
- Press and hold the power button for 15-20 seconds to perform a hard reset, then try powering on again.
Display Issues
- If the screen is blank, ensure the computer is powered on.
- Check for any external display cables if an external monitor is connected.
- Adjust display settings in Windows if resolution or scaling appears incorrect.
Peripheral Connectivity Problems
- For wireless keyboard/mouse, ensure the USB receiver is properly inserted and batteries are charged.
- Try connecting USB devices to different ports to rule out a faulty port.
- For Bluetooth devices, ensure Bluetooth is enabled in Windows settings and devices are paired correctly.
System Slowdown
- Close unnecessary applications running in the background.
- Run a disk cleanup and defragmentation (for HDD, not necessary for SSD).
- Check for malware or viruses using reputable antivirus software.
- Ensure sufficient free space on your 1TB PCIe SSD.
Technical Specifications
| Feature | Specification |
|---|---|
| Processor | 13th Gen Intel Core i7-1355U (10 cores, 12 threads, up to 5.0 GHz Turbo) |
| Display | 27" Touchscreen Infinity FHD (1920 x 1080) |
| Graphics | Intel UHD Graphics, GeForce MX550 |
| RAM | 32GB DDR4 SDRAM (3200 MHz) |
| Storage | 1TB PCIe NVMe M.2 SSD |
| Operating System | Windows 11 Professional 64, English |
| Wireless Connectivity | Intel Wi-Fi 6E (2x2) Gig+, Bluetooth 5.2 |
| Wired Connectivity | 10/100/1000 Mbps Gigabit Ethernet LAN (RJ-45) |
| Ports | 1x USB 3 Gen 2 Type-A, 3x USB 3 Gen 1 Type-A, 1x USB 3 Gen 2 Type-C, 1x HDMI 1.4, 1x Headphone / Microphone Combination Jack, 1x 5-in-1 SD Card Reader |
| Dimensions (LxWxH) | 24.2 x 17.84 x 7.9 inches |
| Weight | 23.8 pounds |
Warranty and Support
For warranty information, technical support, and service inquiries, please refer to the documentation included with your product or visit the official Dell support website. You can find drivers, manuals, and troubleshooting guides specific to your Dell Inspiron 27 7720 model.
Dell offers various support options, including online resources, phone support, and service plans. Ensure you have your product's service tag or express service code ready when contacting support.





