Fix error code 0x80190001 in Windows

Keeping your system updated is a must and Windows updates are definitely a great way to do that. These updates are essential since they provide important security and various fixes for bugs in your Windows 10 computer. However, there are plenty of instances when you encounter issues with Windows Updates and one of them is when the Windows Updates turn off automatically at random times. Some users reported that they saw a notification about Windows Updates being turned off. Note that the issue is not with the update itself since many users turned on the Windows Update and the system was properly updated. The issue is that the Windows Updates turned off all by itself. There could be several reasons why the Windows Updates turned off by themselves. It could be due to the antivirus program installed on your computer. Antivirus programs are known to cause issues with other programs, Windows updates components included. This can occur due to false positives as well as odd compatibility issues. Aside from antivirus programs, the Windows Update service itself could also be the root cause of the problem. There could be a corrupted file in the Windows Update folder or it could be that the Windows Update service wasn’t started properly. Any of these issues can be resolved by following the troubleshooting options given below. Make sure to follow each one of them carefully for better results.

Option 1 – Try to disable your antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the Windows Update process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and once the Windows Update is done, don’t forget to enable the antivirus program back again.

Option 2 – Try to make some changes in the Registry

• Tap the Wins key once and type in “command prompt” in the field.
• From the search results, right-click on Command Prompt and select the “Run as administrator” option to run it with admin privileges.
• Next, type the following command and tap Enter:

reg add "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdateAuto Update" /v AUOptions /t REG_DWORD /d 0 /f

• After that, type the following command and hit Enter again:

sc config wuauserv start= auto

 The command you entered will set the Windows Update to auto so you should be good to go.

Option 3 – Try to reset the Windows Update components

If by any chance that the second option didn’t work, resetting the Windows Update components could also help you resolve the problem. How? Refer to the following steps:

• Open Command Prompt with admin privileges.
• After that, type each one of the following commands and hit Enter after you key in one after the other.
  • net stop wuauserv
  • net stop cryptsvc
  • net stop bits
  • net stop msiserver

Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
  • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
  • ren C:WindowsSystem32catroot2 Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC.

Option 4 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

If you are tried encrypting or decrypting a file using the default EFS engine but you receive an error message instead saying, “Error Applying Attributes, An error occurred applying attributes to the file: The specified file could not be decrypted”, read on as this post will help you sort out the problem. If you encounter this error you can use the error code in it. You will most likely get error code 0x80071771. This kind of error occurs when the File Explorer’s copy and paste feature was not able to read the source file being encrypted or decrypted. It could also occur if you try to access a file that has been on another computer previously.

To fix error code 0x80071771 when decrypting or encrypting a file, refer to the instructions provided below.

Step 1: You need to check first if you can decrypt the files encrypted by EFS. However, if you can’t, just proceed and then take full control of the file. Step 2: To take control of the file, open File Explorer and right-click on the partition, and then click on Properties. Step 3: After that, click on the Edit button under the Security tab. Step 4: Next, make sure that “Everyone” is selected under the Group or user names section. Step 5: Afterwards, the Permissions for Everyone section will be activated. Just make sure that all the checkboxes for Allow are checked and then click on the Apply button. Step 6: Once you’re done, click on the Advanced button. This will open a new window labeled Advanced Security Settings. From there, click on the Change link under the Owner section. Step 7: Now type your account name in the field and click on Check Names to verify the account name and click OK. Step 8: After that, select the “Replace owner on sub-containers and objects” option and then click OK. Step 9: Next, select Administrators in the Group or User names list and select Full Control in the Permissions for Administrators panel and click OK.

BigTech platforms Google and Facebook were hit with a series of antitrust lawsuits by the US federal government and states on charges they are operating monopolies and abusing their power. Below is the status of the cases, as well as government probes of Apple and Amazon in their current states

Two lawsuits against Facebook

In a defeat, Judge James Boasberg said the Federal Trade Commission, which had sued Facebook in December asking that Facebook be forced to sell WhatsApp and Instagram, failed to show that Facebook had monopoly power in the social-networking market, among other problems. However, the FTC could file a new complaint by July 29. He threw out a related state lawsuit entirely, saying that the attorney's general had waited too long. They are looking at their options.

Four lawsuits against Google

The US Justice Department sued Google in October, accusing the $1 trillion company of illegally using its market muscle to hobble rivals. A trial date was set for September 12, 2023. A lawsuit by 38 US states and territories accuses Google of abusing its market power to try to make its search engine as dominant inside cars, TVs, and speakers as it is in phones. This was consolidated with the federal lawsuit for purposes of discovery. Texas, backed by other states, filed a separate lawsuit against Google, accusing it of breaking antitrust law in how it runs its online advertising business. Dozens of state attorneys general sued Google on July 7, alleging that it bought off competitors and used restrictive contracts to unlawfully maintain a monopoly for its app store on Android phones.

Justice Department investigates Apple

This probe, revealed in June 2019, appears to focus on Apple's app store. Some app developers have accused Apple of introducing new products very similar to existing apps created by other developers and sold in the Apple Store, and then trying to banish the older apps from the store because they compete with Apple's new product. Apple says it seeks to have only the highest-quality apps in the app store.

Justice Department probing Facebook and Amazon

In July 2019, the Justice Department said it was expanding its Big Tech probes to include "search, social media, and some retail services online", an apparent reference to Facebook and Amazon.

Federal Trade Commission on Amazon

In its investigation of Amazon, the FTC is likely looking at the inherent conflict of interest of Amazon competing with small sellers on its marketplace platform, including allegations that it used information from sellers on its platform to decide what products it would introduce.

When Microsoft held Windows 11 presentation it took special time to present the upcoming new Windows 11 store as kind of a big deal. It was openly stated that with new Windows we will get a new store with a different attitude and new look.

New Microsoft store

Microsoft has stated that both customer and developer feedback over time has contributed to their redesign and rethinking of the store itself. They want to be sure that policies for developers are more straightforward and clear so more developers will decide to bring their product to Windows. As for customers, they want more safety and more security so they feel protected when making a purchase. The new store will come in Windows 11 but also in Windows 10 as well via update.

Stories and collections

Introducing the new store will be curated stories. Microsoft believes that stores should be focused on user experience so stories from customers themselves will play a big role here. They are rich editorial content to keep you informed about the best apps and inspire you to achieve more with your device. This approach to information is aimed at bringing unknown applications to users via presenting them in a professional manner. Android apps in the store As stated in Windows 11 unveiling and presentation, Android apps will work inside Windows 11. Microsoft has teamed up with Amazon to bring you Android apps directly inside Windows via the new Microsoft store.

Pop up store from within a browser

When you are surfing on a certain webpage and want to save and install the application from there, a new pop-up store window will show allowing you to install the app directly. Microsoft has not said will this feature work outside their Edge browser so we will have to wait and see about that.

Support for multiple types of applications

Since now developers were tied to certain formats if they wanted to publish their application in any kind of environment. Microsoft wants to bridge this. Windows developers can publish any kind of app, regardless of app framework and packaging technology – such as Win32, .NET, UWP, Xamarin, Electron, React Native, Java, and even Progressive Web Apps. For Progressive Web Apps Microsoft has made open-source tool PWABuilder 3.

Flexibility and choice of commerce platform

Starting July 28, app developers will also have an option to bring their own or a third-party commerce platform in their apps, and if they do so they don’t need to pay Microsoft any fee. They can keep 100% of their revenue.

There are times when you encounter some issues while your Windows 10 computer. One of the errors you can encounter in the update process is the “Something went wrong, error code 0x8007042B”. This kind of error might be caused by several reasons and it could also pop up in lots of cases like upgrading to a new feature update or a new build using the Media Creation tool or Windows Update Assistant. There are times when the Windows Update error code 0x8007042B is followed by another error code like 0x2000d. Whatever the extra error code that follows, the core issue still remains the same. To resolve the problem, here are some options that could help. And while going over these troubleshooting tips, you have to keep clicking the Update button right after you carry out a troubleshooting option.

Option 1 – Try to restart the Background Intelligent Transfer Service

The Background Intelligent Transfer Service or BITS is a part of the Windows Update service and is the one that manages the background download of Windows Update, as well as scans for new updates and so on. And if Windows Update is experiencing some problems, you can try restarting BITS but make sure that you have admin privileges to do so.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter to open Windows Services.
• From the list of Services, look for the Background Intelligent Transfer Service and double-click on it to open Properties.
• After that, you need to set the Startup type to “Automatic (Delayed Start) and click on Apply.
• Now click the Stop button to stop BITS and then click the Start button to restart the service.
• Click OK to save the changes made and then restart your PC.

Option 2 – Try creating Windows 10 ISO media

In this option, you will have to create a Windows 10 bootable media and use it to install the latest Windows 10 version. The most user reported that this option works and the reason why it does have something to do with the Windows Update client since the Windows Updates downloaded from the regular Windows Update client seems to create issues such as the Windows Update error code 0x8007042B. However, issues like this one don’t occur when the very same Windows Updates are downloaded and installed via an ISO file. Take note that when using a Windows ISO file, you will be asked to choose what you want to do with the previous settings and apps. A lot of users opted for the “Not to keep the old Windows settings” option which has resolved the issue. So if you want to keep the previous settings then you must try to update Windows first while keeping the old settings. However, if it doesn’t work, you have to try installing the latest version of Windows without keeping the previous settings.

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either the Nothing (clean install) or the Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings since it doesn’t really work.

Option 3 – Run the DISM tool

You can run the DISM tool as well to help fix the error code 0x8007042B during Windows Update. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 4 – Perform a System File Checker scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Windows Update Error 0x8007042B to appear. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update Error 0x8007042B. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 6 – Contact Microsoft Support for assistance

If you’re at your wits’ end in trying to update your Windows 10 computer, you should consider contacting Microsoft Support for help as they can offer you various options that would make fixing Windows Update Error 0x8007042B a lot easier and faster.

If you are trying to access a particular file on your Windows 10 computer either to open, rename or delete it, and you suddenly encounter an error stating, “Could not find this item. This is no longer located in [Path]. Verify the item’s location and try again”, read on for this post will help you out in resolving this issue. If you are able to find and view a file on your computer, you should have clear access to it. And since you are seeing an error message when you try to do something about this file, you are not able to do anything with the file. There are times when this error pops up with the files created by third-party services and that the file’s extension is not defined properly. On the other hand, there are also other obscure causes for this error. To fix it, here are some suggestions you can try.

Option 1 – Delete the file using Command Prompt

If you wish to delete the problematic file and weren’t to, you can use Command Prompt.

• In the Start menu, type in “Command Prompt” to search for it or you could also click the search button right next to the Start menu and then right-click on the related result and select the option “Run as administrator”.
• Once you’ve opened Command Prompt, copy and paste the command given below and tap Entre after you do so. You also have to make sure that you key in the correct path where the file is located as well as its name.

rd /s \?X:badfolderpath Note: In the command above, “X” is the placeholder letter so you must input the letter that corresponds to the drive’s letter where the file is located.

• After that, you will see the “Operation completed successfully” message on your screen. If you don’t, check if you’ve really inputted the correct location of the file or its name.

Option 2 – Use a Command Prompt tweak to rename the file

If you don’t want to delete the file and only want to rename it, you can apply some tweaks using the Command Prompt. Make sure to follow the steps carefully.

• In the Start menu, type in “Command Prompt” to search for it or you could also click the search button right next to the Start menu and then right-click on the related result and select the option “Run as administrator”.
• After opening Command Prompt, type in “cd” followed by the path where the file is located with this format – “C:\Folder1\Folder2\Folder3”. However, you have to omit the problematic file this time. To put it simply, the last folder in the command must be the folder where the file is located.
• After inputting the command, tap Enter on your keyboard and then use the set of commands given below. Note that each command is a new line so you need to tap Enter after copying each line.
  • DIR /A /X /P
  • RENAME (the current name of the problematic file) (a non-problematic name)
  • EXIT

Note: Make sure that you only input the current name and the new name separated by a space. You must not write the brackets in the command. If everything goes well, you will now be able to operate the file like you used to before.

Option 3 – Use Command Prompt to delete the file without any extension

This option applies to cases where the affected file does not have any viable extension which means that Windows does not really know what to do with it and it only displays the “Could not find this item. This is no longer located in [Path]. Verify the item’s location and try again” error message. It usually occurs with the files created by browser plugins that are mostly from Mozilla Firefox. To delete these kinds of files, here’s what you have to do:

• Follow the first two steps from the previous option above so you can navigate to the location of the file accurately just be careful in inputting the folders.
• Don’t forget to tap Enter right after each command and then use the next command below so you can delete the affected file which has no extension:

del *.*

• After you’re done, open the File Explorer and then check if the file is now deleted or not.

Option 4 – Try using another workaround without using Command Prompt

This option is a lot like a workaround but it definitely gets the job done for you. It’s ideal for you if you do not want to deal with Command Prompt and only want to do everything in a graphical environment. To get started, follow the steps below.

• Look for the affected file or folder on your PC using File Explorer. Once you found it, right-click on it and select the “Add to archive” option from the context menu.
• Once the archiving options window pops up, look for the “Delete files after archiving” option and make sure that you select it then click OK to start archiving the folder or file. After that, you should now notice the file no longer exists.
• After that, delete the archive file as well.

Each time you connect to a Wi-Fi network your PC saves that network password. If for any reason you need to see this password or passwords there are ways you can do it and we are here to show you how. Hello and welcome to error tools where we aim to help you with all of your Windows problems and issues, where we offer our insight on various topics and sometimes go offroad and write something crazy. This time we will offer you a way on how to easily and quickly see how can you find out your memorized Wi-Fi password.

Find your W-Fi password

1. Make sure that you are connected to the Wi-Fi network you wish to find out the password of
2. Open Windows Settings app by pressing ⊞ WINDOWS + I
3. On the left side choose Network & Internet and click on it
4. Click on Advanced Network Settings
5. Inside Advanced Network Settings go to Related Settings
6. Select More Network Adapted Options
7. Right-click on your adapter and select Status
8. Click on Wireless Properties
9. Click on the Security tab
10. Click on enable on Show Character box beneath Network Security key to reveal Wi-Fi password

What is Active History? A new feature has been introduced in Windows 10 that allows users to stay connected to their tasks across their devices. This new feature is called “Windows Timeline” and using this feature, users could continue their tasks all over their Windows 10 computers as well as on devices that run Android and iOS as well. This new feature was included in Microsoft Launcher and Microsoft Edge on Android devices as well as in Microsoft Edge for iOS devices. In order for the feature to work, you have to send either Basic or Full data and diagnostics of your computer to Microsoft which would sync it all over your devices with the help of the cloud. And now since all your data is stored on your Windows 10 computer and with Microsoft under your account, it is easier for you to access the back and start where you left off. This kind of option is called Active History. In this post, you will be guided on how you can permanently disable Active History using either the Windows Registry or Group Policy. Before you go on further, it is recommended that you create a System Restore Point first in case anything goes wrong. This is a precautionary measure you must take so that you can easily undo the changes you’ve made. After creating a System Restore Point, proceed to the given instructions below.

Option 1 – Disable Active History via Registry Editor

• Tap the Win + R keys to open the Run dialog box and type in “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to this registry key: ComputerHKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsSystem
• From there, check if you can find a DWORD named “PublishUserActivities”. If you can’t find this DWORD, just create one with the same name and make sure that the base is selected to Hexadecimal.
• After that, double-click on the DWORD and change its value from 1 to 0 to disable Active History.
• Restart your computer to apply the changes you’ve made successfully.

Option 2 – Disable Active History via Group Policy Editor

Note that this second option won’t work if you are using the Home edition of Windows 10. This is because the Group Policy Editor does not come with Windows 10 Home. So if you are not using Windows 10 Home, follow the given steps below.

• Tap the Win + R keys to open the Run box.
• Then type in “gpedit.msc” in the field and hit Enter to open the Group Policy Editor.
• Next, navigate to this path: Computer ConfigurationAdministrative TemplatesSystemOS Policies
• After that, double click on the configuration listing named “Allow publishing of User Activities” to open the configuration page which has the following description:

“This policy setting determines whether User Activities can be published. If you enable this policy setting, activities of type User Activity are allowed to be published. If you disable this policy setting, activities of type User Activity are not allowed to be published. Policy change takes effect immediately.”

• Now you have to select Disabled or Not Configured if you want to disable Publishing of User Activities or Enabled to Enable Publishing of User Activities depending on your preferences.
• Next, click OK and exit the Group Policy Editor and then restart your computer to successfully apply the changes made.

It has been some time since the release of Diablo 2 resurrected and overall reception was pretty good. People are enjoying the old classic game in hi-def. resolution and with new and improved visuals. Sadly some server issues are present still until this day and somewhat spoil the experience for players. The greatest lag and server crashes are pinpointed to game-creating events. When a player creates a new online game, the server needs to pull a lot of details from the database and make a game, due to some legacy code present this process takes some time and it is demanding a bit on the server-side, and although code was optimized to cater to more modern approach some legacy code still remains. Another thing that was spotted to affect performance itself is player behavior, to be more specific, modern gamer behavior. Where players find good builds and runs on the internet and then go to farm-specific areas or bosses for loot or experience points, which in return boils down to making plenty and short runs that are made by creating games and after run eliminating them. Now pair that with the previous statement about legacy server and database code and you can add 1 and 1 and see how this might be an issue. A lot of short games over legacy code are placing games in a state it was not designed for back in 2001 and therefore we have issues. Sadly solutions without completely rewriting the whole code are not very promising and they include rate limiting, which will prevent players to create many games in succession in a short period of time and maybe even login queues to drop a load on servers. Blizzard reached to people in the whole company, even old diablo 2 developers to ask for advice and they say that they are working on solutions so they could lift limitations and have everything running fine.

If you suddenly encounter the DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL Blue Screen error on your Windows 10 computer along with the error codes, 0x000000D5, 0xb10BBD9E, 0x0D82DA24, 0Xfecd479D, 0x779827CB then read on as this post will provide you some troubleshooting tips that could help you resolve the BSOD error. Getting this kind of BSOD error means that a driver has referenced memory that was freed earlier and it could also mean that the Driver Verifier Special Pool option has caught the driver accessing memory which was freed earlier. Follow the given options below to fix the DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL BSOD error.

Option 1 – Use the Driver Verifier Manager

The Driver Verifier Manager is another tool in Windows that could help you fix driver-related issues.

• Type in the keyword “Verifier” in the Cortana search box to search for Verifier in Windows 10.
• After that, select the option “Create custom settings”.
• Make sure that you have checked everything except the options “DDI compliance checking” and “Randomized low resources simulation”.
• Next, select the option “Select driver names from a list” option.
• Afterward, you have to select all the drivers from any unofficial or third-party provider. To simply put it, you have to select all the drivers that are not supplied by Microsoft.
• Then click on the Finish button.
• Open Command Prompt as administrator and execute this command – verifier /querysettings
• The command you just executed will display the Driver Verifier settings so if you see any of the flags enabled boot your Windows 10 PC into Safe Mode.
• Open the Command Prompt as admin again and run this command – verifier /reset
• The command will reset the Driver Verifier. Once the process is done, restart your PC and check.

Option 2 – Try updating SSD firmware

If you have installed SSD on your computer recently and you have started getting the DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL Blue Screen error since then you may have to update the SSD firmware. To fix this, you can download the Intel Solid-State Drive Toolbox from the official website. This toolbox is compatible with Windows 10 and Windows 7 and later versions.

Option 3 – Try running the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL. It can be found in the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 4 – Try running Microsoft’s online Blue Screen Troubleshooter

If running the built-in Blue Screen Troubleshooter didn’t work, you can also try running Microsoft’s online Blue Screen Troubleshooter. All you have to do is go to Microsoft’s website and from there, you will see a simple wizard that will walk you through the troubleshooting process.

Option 5 – Try to reinstall or update device drivers of recently installed hardware

If the first few options didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer.

Option 6 – Try disabling Hardware Acceleration

You might want to disable Hardware Acceleration system-wide or for a particular program like Google Chrome and see if it resolves the DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL BSOD error