How to Repair BSOD Stop Error code 0xc000021a in Windows 10

Computer upgrades are the most common and most efficient ones. RAM upgrade is one of the easiest ones you can do and the most common ones but even as simple an upgrade as this one can cause certain issues. If you are experiencing error 0164, memory size decreased after RAM upgrade we are offering you solutions on how to fix this particular error and get your computer back in working order.

1. Change BIOS settings

   Enter your motherboard BIOS (usually by pressing the del key on startup) Load BIOS defaults Save changes and exit If the Error 0164: Memory size decreased issue persists even after loading setup defaults, then it must be configured manually inside the BIOS.

2. Clear CMOS

   Follow the instructions precisely:
   • Turn off all peripheral devices connected to the computer.
   • Disconnect the power cord from the AC power source.
   • Remove the computer cover.
   • Find the battery on the board. The battery may be in a horizontal or vertical battery holder or connected to an onboard header with a wire.
   If the battery is in a holder, note the orientation of the + and – on the battery. With a medium flat-blade screwdriver, gently pry the battery-free from its connector. If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header.
   • Wait one hour, then reconnect the battery.
   • Put the computer cover back on.
   • Plug the computer and all devices back in.
   • Power on the computer.

In the latest Windows 11 fiasco, it is reported that the operating system is slowing down some SSD drives. Good thing is that it does not affect all of SSD on the market but the ones which it is affecting can see even a 45% of speed drop. Microsoft has not published a solution to this issue, but users point out two potential problems. The first is a security mechanism based on disk virtualization, which is supposed to slow down the performance of SSDs. The second, in turn, is related to the place of installation of Windows 11 – users indicate that if the performance test is performed on a medium with no files associated with the system, its performance results are similar to the parameters given by the manufacturer. Transfer speeds were to be slightly improved with the latest Windows 11 update 22000.348. However, users are still waiting for a solution to the problem that significantly reduces the efficiency of SSD media.

More information

The details described leading to speculation that the problem could be related to drivers that Microsoft is providing. On further tests, all Nvme drives that use the Microsoft driver have this problem, but Intel 905P, which has its own driver provided by Intel, is working at full power,”.

When you get an igfxem.exe error in Windows, it is not really clear what does this means, usually, Windows throw us some code or we get a DLL error, rarely we get an EXE error. So what does this error means? Intel Graphics Executable Main Module, shortly called as IgfxEM module is a part of the Windows operating system. When you run Microsoft .NET Framework applications that use the AS/400 Data Queue ActiveX control (Mseigdq.dll) to read from and to write to IBM iSeries (AS/400) data queues, you may experience this error. In order to overcome this error and cope with it try the following things:

1. Increase Virtual Memory

   Go to the Start Menu and click on Settings. Type performance. Choose Adjust the appearance and performance of Windows. In the new window, go to the Advanced tab and under the Virtual memory section, click on Change. At the bottom of the new window, check what the Recommended value is and how it compares to Currently allocated. If the current setting is significantly less than the recommended, uncheck the Automatically manage paging file size for all drives box at the top of the same windows and then click on Custom size. Enter the Recommended value in the Initial Size box, and a larger figure in the Maximum size box. Click OK to save the new settings.

2. Download and update .NET framework

   Go to the Microsoft website and download the latest .NET framework. Once the download is complete, install the package following onscreen instructions.

3. Reinstall INTEL graphic drivers

   Go to the intel website and download the latest graphic drivers for your graphic card model. Once the download is complete, install the package following onscreen instructions.

4. Run SCF scan

   If all else fails, run command prompt and inside type sfc /scannow

In the last article, we have covered various advantages of Apple hardware over Windows PC, however, PC has their own strengths and advantages over MACs as well. Join us as we explore why would you choose Windows PC over MAC.

Hardware customization

If you like to customize and build your own hardware and customize your existing computer then MACs are out of the picture, on other hand, computers based on Windows operating system are much more flexible in terms of customization.

While Apple hardware is locked and only allows small changes to it, computers running on Windows are free and open to various upgrades and modifications so if you like to play with hardware Windows is your platform.

Gaming

There are games on MAC true but their numbers can not compare to games available for the Windows platform. On top of that, most latest and best gaming hardware is not even available on Apple platforms so if you plan to game in high resolutions and play the latest games there really is no option other than Windows.

Windows Platforms also has multiple emulators that you can use to play games from other older platforms and Microsoft since it owns Xbox has some great plans for both PC and Xbox gaming.

Software back compatibility

Since the introduction of the new MAC OS X, apple really lost a lot of application back compatibility, and a lot of old legacy software can not be run on modern Apple computers. Windows on the other hand have always tried and succeeded in keeping maximum compatibility with older and legacy software.

Also on the Windows platform, there is a lot of community support for old and legacy software so even if it is not officially supported it is backed up by the community.

Software variability

In terms of where can you find the most different software, you need to look no further than the Windows platform. How Windows itself has great backward compatibility and a lot of developers are using it to create new software thanks to Visual Studio and .NET Windows has cemented itself as a platform with the most available software.

The popularity of Windows as the home operating system and as a gaming platform has made it quite interesting in eyes of various developers and tons of small applications are made daily for it. Windows 11 has also brought native android support to it and that has just expanded its already impressive catalog of applications.

Freedom of choice

Overall Windows PC is most appealing for users that like to be able to choose everything, from hardware components to software they would like to use. No other platform will give you larger freedom of choice and better personalization options.

If you own an iPhone, iPad, or iPod you might be aware of the phenomenon of connecting and disconnecting your device. In one moment device is connected and then it somehow loses connection and you have to plug in back again to be recognized. In this troubleshooting guide, we will address ways to eliminate this issue and to connect and have your devices working properly. We will go from the most common ones to the most uncommon so it is advisable to try solutions in order to how they are presented.

1. Check cable

   The most common issue with this kind of behavior comes from a broken cable if you have the opportunity try another working cable to see if the device will behave differently. If everything is working fine with another cable, the issue is in the previous cable.

2. Check USB ports and Cable Jack

   Usually, it is a cable issue, but it can also be a USB jack on cable or even a USB port on a PC, try putting the jack into another port to see if this will solve the issue.

3. Check device settings

   From updates on your device comes a change of setting about privacy which can reflect on connection with the computer. In order to eliminate this, you will need to reset your device. Go to device settings and go to general Scroll down until you find the reset section and go into it In the reset, section click on reset location and privacy You will have to authenticate using your pin/passcode in order to complete the reset function Enter your passcode (or use any other authentication method you have chosen) and you can now reset the Location and Privacy settings. Click on reset Connect the device to PC and choose trust this device

4. Update iTunes

   Outdated iTunes can also be a problem with this particular issue. Go to the apple website and download the latest version of iTunes or updating it via apple updater.

If your Microsoft Edge browser and Windows Store apps are now unable to connect to the internet after you have just installed the newly released Windows 10 v1809 October 2018 update, then this post might help. As you know, Microsoft has made a change recently and because of this, some users are getting the “Hmm, we can’t reach this page” error when they try to open Microsoft Edge as well as other pre-installed apps like News, Mail, and so on. Aside from that, you also won’t be able to connect the Microsoft Store apps to the internet. What’s strange is that you can connect to the internet using other programs like Google Chrome, Internet Explorer, and many more. Apart from checking your internet connection, there are other things you can to resolve the problem. If your Windows Store apps are not able to connect to the internet and you’re only getting the Error 80072EFD, then you might have to enable IPv6 as the new Windows 10 v1809 requires IPv6 to be enabled so that you can use the UWP apps. And so you have to enable IPv6 in the network card along with IPv4. To do so, follow the steps below. Step 1: Tap the Win + R keys to open the Run dialog box. Step 2: After that, type “ncpa.cpl” and hit Enter or click OK to open Network Connections. From there, you will see your currently connected network profile. Step 3: Right-click on your network profile and select Properties and then go to the Networking tab and look for the “Internet Protocol Version 6 (TCP/IPv6)” and select its corresponding checkbox. Step 4: Now click the OK button to save the changes made and restart your computer.

As you know, aside from making computing a lot easier, mouse and touchpad, it also makes computing more efficient and less time-consuming. And so life is unimaginable without these useful devices. However, it is a known fact that you can’t customize these devices since all touchpads and mice come with their own default scrolling direction but worry not for in this post you will be guided on how you can reverse their default scrolling directions. Every user has their own different preferences when it comes to scrolling directions. You might want the scrolling directions to look like the page is being scrolled in the same direction in where you move your fingers over the touchpad or you might prefer it in an inverted way. Reversing the scroll direction for your device’s touchpad is really easy as Windows by default offers this customization. So if you are trying to find a way to reverse the scrolling direction of your mouse, then you have to follow a tricky little method which will be provided in this post. It is apparent from the number of settings the touchpad is available that it has become more customizable. You can configure everything, from its gestures, taps, sensitivity, and even its scrolling direction. And now, if you want to reverse its scrolling direction, here’s what you have to do: Step 1: Tap the Win + I keys to open Settings. Step 2: From there, go to Devices and select Touchpad from the menu. Step 3: Next, look for the Scrolling Direction setting. Step 4: Then click on the drop-down and select your preferred setting.  If you want the same direction scrolling, just select the “Downwards motion scrolls down” option, and if you want the opposite select the other one. After you carry out these steps, the settings will be applied right away and you will see the changes. On the other hand, if you want to change the scrolling direction for your mouse, the procedure is not as simple as it was for the touchpad.

To reverse the scrolling direction for a mouse, refer to these steps:

Step 1: In the Start Search, type “device manager” and click on the appropriate result to open the Device Manager. Step 2: After opening the Device Manager, look for your Mouse under the “Mice and other pointing devices” section. It is mostly listed as an “HID-compliant mouse”. Step 3: Right-click on your mouse and click Properties. Step 4: From there, go to the Details tab and from the drop-down menu, select Device Instance Path. Step 5: Now take note of the value displayed on its value field and then tap the Win + R keys to open the Run dialog box. Step 6: Type in “Regedit” in the field and hit Enter to open the Registry Editor. Step 7: Next, navigate to the following location:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumHID

Step 8: From this folder, you have to start matching the values in the first part of the value you’ve taken note of. Step 9: Open the folder which has the same value and repeat this for the second part of the value. Step 10: Afterwards, click on the Device Parameters and look for a property named “FlipFlopWheel” and invert its value from 0 to 1 or 1 to 0 to reverse the scrolling direction. And then restart your PC to apply the changes made. After you restart your PC, you should see the changes in the scrolling direction of your mouse. Note that you can change the value back to its original value or just use the registry backup to undo the changes you’ve made.

Mac OS

A solid reason to switch to Mac from Windows PC is Mac OS. Based on Linux, offers more stability and better security than Windows but you will not be able to find a vast array of applications on it.

Even when Mac OS X (the first big one) was first introduced, it looked and felt like ages beyond Windows (Microsoft just recently made a slick and modern design with Windows 11). Under the hood, it turned out that the operating system itself is stable and incredibly fast & responsive. If you value stability and easiness of use, Mac OS is the Operating system for you.

Apple ecosystem

This one is easy, if you are already invested in apple devices like iPhone and iPad, having an apple computer is one step forward into the apple ecosystem and one more step into easy sharing of documents and data between devices.

Calendars, emails, photos, videos, documents, and many more can easily be shared and synched between devices with a single apple ID making workflows much easier than on other operating systems.

Development

Developers all around the world say that developing on Mac is much better and smoother than on PC, this has probably to do something with OS being based on Linux but whatever the case is, it is much smoother and it just feels better. Apple laptops are often the go-to choice of developers for a reason.

Also if you are in the development business for applications and services aimed at iPhone or iPod then there is no really another way than to be into the apple ecosystem and own apple hardware.

Professional software

A lot of professional-grade software exists for both the Windows platform and Mac OS but there is some software that exists exclusively for Apple hardware like Final Cut Pro or Logic Pro. Both applications are used by professionals and are industry-standard software.

Logic pro is used by industrial audio specialists all around the world and is used in professional studios. Final Cut Pro is also used worldwide by video editors and if you are specializing in any of these two fields Mac seems like a very reasonable platform since the software can not be found on Windows. These two are examples, there are other similar applications that are only available on Mac OS

Longevity

Apple hardware is made of high-quality materials and components and it is proven over time that it lasts longer than usual. There are iPhones out there that have 13 years and they are still working, G3 and G4 Macs that are still functional.

When buying Apple products they will outlive other ones if treated properly so in the end you could be saving money by purchasing them.

A black screen error inside Windows 11 is a typical screen turning to solid black without any error message. This can be very annoying since it can randomly appear out of nowhere and it will appear while you are using the computer. Worry not, this is not a serious error and we have several solutions for it, so please keep reading and try them as presented in order.

Restart graphic driver

This is the first thing to check if the issue is due to software or driver malfunctioning, there is a shortcut for rebooting graphic driver inside Windows 11. Press WINDOWS + CTRL + SHIFT + B to reboot the graphic driver and see if this fixes the issue. A beep sound should be heard during this process and the screen should turn back to normal.

Check connections

Sometimes the screen can go black due to a faulty connection or cable. If you have it at your hand try a different cable or slightly and gently nudge the existing one to see will screen flicker. If you are on a laptop try gently moving the lid from back to front and pay attention to the screen. If screen flickers or picture returns with this method, cable or connector needs to be replaced.

Clean your computer

The black screen can be because the computer is overheating. If this is the case either fan inside is not working properly or there is a lot of dirt and dust that needs to be removed so airflow can be established again for proper cooling. We have an article on errortools.com on how to properly clean your PC but if you are not technical enough maybe the best solution would be to call someone who is or to take the PC to service for cleaning.

Change The Projection Settings

Press WINDOWS + P to open projection settings, check to see if PC is set to PC screen only. If any other option is selected change it to PC screen only since this can cause random black screen issues.

Uninstall latest updates

If this problem has started to manifest itself during the latest update, go to setting and roll back from the latest update to fix this issue.

Scan system for malware

The black screen can also be caused by various viruses and malware. IF you have anti-virus software, run a full system scan to check it for malware. If you do not have one, download a free one and run a system scan, we recommend Bitdefender.