Open the Wireless Display app on the laptop you're using as a second monitor On your main PC, press Windows + K to search for wireless displays. Select your laptop's name from the list of options.

I urge those considering a second monitor to try virtual desktop tools first and plan exactly how you’ll use that second or third display! 5 Reasons Why You Don’t Need a Second Monitor on Your ...

Once you have got your hands on an HDMI capture card, connect it to the laptop you want to use as a monitor. Then, connect the HDMI output from your main computer to the HDMI input on the capture ...

Head over to Amazon to get the WGK Portable Monitor 15.6‑inch for just $50, down from its usual price of $84. That’s a discount of $34 and 41% off.

But If you’ve been looking to upgrade your portable setup, this OLED Portable Touchscreen Monitor answers your prayers. And you can take one home for $269.99 (reg. $359) with code DISPLAY30.