Check Dell warranty status online:
If you have the service tag or express service code of your Dell device, you can easily check the warranty status online with a few clicks. The service tag and express service code are usually found on the back of the device. If you cannot find the service tag or service code on the device, please refer to the directions in Method 2.
Step 1: Visit this warranty page of Dell in a web browser on any device.
Step 2: In the field, type the service tag or express service code and then click the submit button to see the warranty status of your Dell computer.
Check Dell PC warranty status using Support Assist:
If you cannot find the service tag information on your Dell PC, you can run the built-in Support Assist tool on your Dell PC to check the warranty status.
Step 1: Open Dell Support Assist program on your Dell PC. You can use the Start/taskbar search to open the same. Almost all new Dell PCs come with Support Assist, but if you cannot find Support Assist on your PC, you can install it from this page of Dell.
Step 2: Once you open Support Assist program, you can see the warranty status of the device on the left-pane. As you can see, the pane shows the warranty expiry date. You can also find your Dell PC’s service tag here.