This article shares multiple ways to fix second monitor not detected on Windows 10 issue easily.\u00a0Read on to know more. Is your second monitor not detectable? In many workplaces, the custom of having a second monitor is on the rise. Studies have shown that it saves an employee\u2019s time immensely and also brings relief to their eyes. Flipping through the sites is as cumbersome as locating the place where you left reading your article. Even at home, a second monitor can bring a huge difference to your working speed. While using a single screen, you might have noticed that you have ended up wasting a lot of your time while switching from one window to another, in the process of your work. Connecting an external display to your desktop is an easy task often to be achieved within minutes, however sometimes, Windows 10 is incapable of detecting the second monitor.\u00a0 Why could Windows 10 not detect a second monitor? It is due to some hardware or driver related issues primarily. If you\u2019re bogged down by such issues, then don\u2019t worry about it. In this article, we would tell you various ways in which you can fix and troubleshoot the undetected second monitor issue comfortably. Simple Ways to Fix Second Monitor Not Detected on Windows 10 Below you will find 6 easy fixes that helped several users resolve the \u2018computer not detecting second monitor\u2019 problem. Scroll through the list below until you find the one that works best for you. Method 1:\u00a0The Hardware Troubleshooting Technique So, now you have looked around your device several times and you could not detect the second monitor connection linked to your main system. So what do you do? Definitely the next step is to find out how you would be able to fix it on your own. You can begin by troubleshooting the hardware. Remember, there could also be a problem in the way the undetectable display monitor remains tagged to your main system. Try to check that there are no wire or plug or pin issues to begin with, before moving into the correction of the software. If Windows 10 could not detect a second monitor then, you must try out these steps before you try any modifications with your system settings. \tBegin by starting the computer once again to check if you can get it connected. \tCheck for the built-in controls within your monitor to ensure the right input is chosen. \tExamine the cable to check if the graphics card is connected to your monitor. \tSimply disengage the cable from both the sides and give it a couple of seconds before reconnecting them again. \tChoose a different cable if you have one, since many a times, the issue might majorly be in the pins of the cable; often a bad cable could also be the cause. If you are connecting a new display ensure you have used the correct cable. \tTry changing ports if there are multiple ports for the monitor if your second monitor is undetectable. \tIf you have a spare computer, you can try connecting your display to ensure the problem does not lie in your monitor. \tYou just need to ensure that your graphic card is working fine, since sometimes the issue is in the graphics card. Find one spare monitor and connect it to a different system to check for your graphic card. \tIf you\u2019re using a surface dock that has a dock station, disconnect everything and try to join your monitor straightway with your device. This would ensure that your surface dock is not an issue at all. \tEnsure you know your display monitor\u2019s type that you connect to your computer system. Go back and check the display monitor manufacturer\u2019s site to ensure you are aware of the firmware and the best way to apply the latest updated firmware. Once all this is tried from your end, and you have assured yourself that there are no issues, now you move on to fix the problems you have with the software. \u00a0Also Read: How to Fix Mouse Frozen Issue on Laptop Method 2: Fix the External Display Issue Using Device Settings You can now move on to your settings to find out ways in which you can deal with Windows 10 not detecting the second monitor error. Now, this is where you might need to do some work: Check for the second display detection via cable internet service \tOpen the settings in your computer\u00a0 \tOn the left side of the panel, find out the System tab. \tUnder the system tab, find out the display section. \tOn the right hand side of the display screen, press on \u201crearrange your displays.\u201d \tHit the detect button, to be found on the bottom-right corner. With all this, Windows 10 would be capable of detecting the display monitor. Now, set up your display settings as per your requirement. Check for second display connection via Wireless device When you are attempting to connect using a wireless display mode, then you can use the below steps to connect your second monitor to the device. \tOpen your settings tab. \tOn the left hand side, you would come across the devices segment. \tBelow devices, there would be several options on display. Choose Bluetooth and other devices. \tOn the screen displayed on the right hand side, there is a tab, Add Bluetooth & other devices button. \tIn this dropdown, click the Wireless display or dock option. \tEnsure that your wireless display is on and you are able to discover it from the manual. \tChoose the display from the list and then follow the on-screen directions. \tNow restart your computer and check whether the second monitor not working issue is resolved or not. Also Know: How To Fix \u201cBluetooth Peripheral Device Driver Not Found\u201d Error Method 3: Change Back to an Earlier Installed Video Driver It might come to you as a surprise, but often the latest drivers might work erroneously. Now, in order to understand if this is the real problem, you can always return back to an older version of the Video Driver. \tTap on Windows logo key and R together to bring up the Run box. \tType devmgmt.msc and hit the OK button. \tClick on the display adapter section, and then select properties by clicking on the display device software. \tPress the Roll Back Driver tab by clicking on the Driver tab; follow the instructions further to move through the screens. This should be of some help to you, if not, and then you might have to run the computer again to check if you are now able to find out if your second monitor is not detected. Method 4: Update Your Graphics Driver When your second monitor cannot be detected, it means that your graphics driver is either corrupt or it is damaged. In this scenario, you can always use an\u00a0automatic\u00a0driver updater software, i.e., Bit Driver Updater to download all out-of-date or defective drivers without any human intervention.\u00a0Here is how to update your graphics driver software with the competent Bit Driver Updater tool. \tFirst, download and install the software\u00a0from here. \tAfter that, initiate a scan to detect problem drivers on your system by clicking the \u2018Scan Drivers\u2019 button. \tOnce the\u00a0scan gets complete, click on the \u2018Update Now\u2019 button located right next to the graphics driver to update it. Method 5: Check if Your Monitor Refresh Rates are Same The number of times your monitor\/computer refreshes the images displayed on it should be the same for both the connected systems. This is known as the monitor\/screen refresh rate. Some of the graphic cards would not support if the refresh rates of two different systems are not the same. Now, this might be the reason why your system is not detecting the second monitor. To correct it, follow the steps below, \tPress Windows Logo key and the \u2018I\u2019 key together. \tClick on the system from the pop-up that appears on the Settings window tab. \tPress Advanced display settings under the Display segment. \tNow check the display adapter properties under Display 1 and Display 2. \tCheck if the Screen refresh rates are the same for both monitors. \tNow change the values so that they match each other and then save the changes. \tFurther click on OK and now find out if your second monitor is visible now. Also Read: Fix: USB Device Descriptor Request Failed Error in Windows 10 Method 6:\u00a0Alter Your Project Mode Sometimes the second monitor does not appear due to the wrong project mode. In this case, you can try changing the\u00a0projection\u00a0mode and check if that helps resolve the \u2018second monitor not detecting\u2019 problem. \tHold onto \u201cWindows logo key\u201d and then press on the 'P' key. \tIf you want to mirror the same screen on the second monitor, choose Duplicate and if you are trying to increase the area of your work, you need to choose Extend. Fixed: Second Monitor Not Detected Problem You might have found respite from your second monitor being undetectable by now. One of these above methods would surely do the trick for you. So, enjoy an extended workspace or mirror your laptop screen. Though you might have invested a lot of time by now, however, I am sure you are happy that you can work without any trouble at all going forth. If you have any more ways in which you can fix the dual monitor not working issue, let us know and share your suggestions and invaluable advice with us in the comment box below.