The iMac is running macOS High Sierra 10.13.6, which is the last possible macOS version for the machine. Mindy, et al., I have a late 2009 27″ iMac that I use as a monitor for PCs that are running Windows or Ubuntu Linux. Have you tried using your iMac as a PC monitor? Share your thoughts and experiences in the comments below. Having dual monitors can make gaming, working, and homework much easier, so it’s certainly worth a try. While you may have difficulty connecting the two if certain criteria are not met, for those with the proper cables and the Target Display Mode equipped, you can use an iMac as a monitor for a PC. If you have the right devices and cables/adapters, using an iMac as a PC monitor is pretty easy. For example, if you are mirroring to a 5K iMac, the resolution of 2560 x 1440 should work fine, but this depends on the exact iMac and PC model you are using. You might need to go into ‘Display Settings’ and change the resolution so it appears the same on both machines. Click on the iMac and your PC should show both displays. The PC will look for available displays and your iMac should appear in the results. Select the ‘Project’ tile and choose ‘Connect to a wireless display.’ Move onto the PC and access the ‘Action Center’ from the bottom-right corner. Under ‘Projecting to this PC,’ click on the first drop-down menu and choose ‘Available everywhere.’ Select ‘First time only’ under ‘Ask to project to this PC.’ It is not necessary to ‘Require PIN for pairing,’ so you can keep the option off.Īt the bottom of the window, make sure you give your computer a name, especially if you have multiple machines at your home. Go into Windows Settings on your iMac, choose ‘System’, and select ‘Projecting to this PC’ from the menu bar on the left.

Make sure your iMac is on and running Windows, then connect to the same network as your PC via Ethernet or WiFi.

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