Welcome to the Dell Community [NAME]  Yes, you can install 2TB. Dell manuals are "Good" reference for what was sold with the laptop. But in NO way do the manuals reflect the hardware limitations. Best regards, U2
[URL]   Support page shows that the Inspiron 7586 PCIe NVME capacity is up to 1 TB? Why can it not be 2 TB? Is there any technical limitation of the computer that will not allow it to use a 2 TB Samsung EVO 970 drive?
Why is it not possible to use a 2 TB NVME SSD with Inspiron 7586?