Dell Inspiron 7459 Specification Sheet

To perform a factory reset, restart your desktop and press F8 during boot to access Advanced Boot Options. Select 'Repair Your Computer', then choose 'Dell Factory Image Restore' and follow the prompts.
Check if the power cable is properly connected to both the desktop and power outlet. Verify the power outlet is functioning. If the issue persists, try a different power cable or contact Dell support.
To upgrade the RAM, turn off the desktop and disconnect all cables. Remove the back panel using a screwdriver, locate the RAM slots, and insert the new RAM sticks, ensuring they are properly seated. Replace the back panel and reconnect the cables.
Ensure that the vents are not blocked and clean any dust from air vents and fans using compressed air. Check for any software updates or BIOS updates that might address fan control issues.
Connect each monitor to the desktop using HDMI or DisplayPort cables. Go to 'Display Settings' on your PC to configure the display order and resolution for each monitor.
Start by restarting your computer. If the issue persists, check Device Manager to see if any USB drivers are flagged and update them if necessary. Also, try a different USB device to rule out device-specific issues.
Ensure that the touch screen drivers are installed. Go to Device Manager, find 'Human Interface Devices', and check if the touch screen is enabled. If not, right-click and enable it.
Visit the Dell Support website and enter your service tag to find the latest BIOS update. Download the BIOS update file and run it, following the on-screen instructions to complete the update.
Start by checking the network cable connections and ensure the router is working. Run the Windows Network Troubleshooter from 'Settings' > 'Network & Internet' > 'Status'. Update your network adapter drivers if needed.
Regularly clean dust from the vents and fans using compressed air to prevent overheating. Keep the operating system and drivers up to date. Perform regular backups and check for any hardware or software issues.