As you know, Windows 10 comes with a pre-packed feature that allows you to rotate the screen at different angles, and to facilitate this feature, there are keyboard shortcuts you can use as well. However, from time to time, no matter how useful this feature is, users still experience a handful of issues. One of which is that they suddenly find their screen rotated or Upside Down even when they didn’t do a thing or adjust the setting.
You may have pressed the shortcut on the keyboard by accident or some other program changed the setting on your computer without your permission – whichever the case is, this post will show you what you can do to fix the upside-down screen on your Windows 10 PC using the options laid out below.
As mentioned earlier, Windows have hotkeys in the UI that changes the orientation of the display. So the first thing you need to do is to make sure that these hotkeys are enabled and if they are, you can use the keyboard shortcut to adjust the orientation of your screen.
You will probably see the “Graphics Properties” option if you use the Intel HD Graphics every time you click on your Desktop. Note that this option has all the graphics driver properties and helps you in changing the configurations as well as control several options like refresh rate, resolution, color-depth and many more. You have to navigate to these options to see if the orientation is changed in these properties. To do so, follow the steps below.
Since the Windows Settings have a section where you can manage the display settings of your computer, you can use them to help control the resolution of your PC’s display without any trouble. There is a possibility that the settings are changed there so that’s probably why your screen is turned upside down all of a sudden.
There are monitors that have buttons in them that allows users to shift the rotation of the screen to 90 degrees. It could be that your monitor has these buttons without you knowing and you suddenly pressed them by mistake which caused your screen to rotate. Thus, you have to check your monitor for any physical buttons on the side and if you see a menu, navigate to its options and check if there are screen rotation options. To make it easier for you, you can simply search your monitor’s model online and see if these buttons exist. You could also go over your monitor’s manual if you still have it as it contains details with regards to screen rotation.

Advanced desk featuresError code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c.
Error CausesThere are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:
• Computer malware has infiltrated your device.
• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.
• When there are mismatched system files installed or system upgrading process failed or still incomplete.
• Premature unloading of Wbemprox.dll
• Newly installed third-party software is not compatible with the operating system.
• There are corrupted, outdated, or incorrectly configured device drivers.
• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.
• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.
In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately. However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.
“EventData BugcheckCode 159 BugcheckParameter1 0x3 BugcheckParameter2 0xfffffa80029c5060 BugcheckParameter3 0xfffff8000403d518 BugcheckParameter4 0xfffffa800208c010 SleepInProgress false PowerButtonTimestamp 0Converts to 0x9f (0x3, 0xfffffa80029c5060, 0xfffff8000403d518, 0xfffffa800208c010)”This kind of BSOD error is caused by an issue with the Power Supply components in both the software and hardware parts of your computer. In such cases, if your computer is stuck in a reboot loop, you need to troubleshoot the problem via Safe Mode or in the Advanced Startup options screen.
Error Causes