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Pci.sys Missing on Windows 11? How to Download & Fix it




The missing or corrupted @system32driverspci.sys error can be addressed by changing some of your BIOS settings.

Alternatively, you can use a third-party software that duplicates or replaces corrupted system files.

Don’t hesitate to upgrade your operating system as the support for Windows XP or 2000 has ended back in 2014.



To fix Windows PC system issues, you will need a dedicated tool

Fortect is a tool that does not simply cleans up your PC, but has a repository with several millions of Windows System files stored in their initial version. When your PC encounters a problem, Fortect will fix it for you, by replacing bad files with fresh versions. To fix your current PC issue, here are the steps you need to take:

Download Fortect and install it on your PC.

Start the tool’s scanning process to look for corrupt files that are the source of your problem

Fortect has been downloaded by


readers this month.

This error message usually appears on computers running the Windows 2000 or Windows XP operating systems. But today we will be using Windows 11 to showcase the solutions. Don’t hesitate to upgrade your OS as well.

What do system files do?

System files are typically found in specific folders that have been designated as a system folder on the computer’s hard drive. These files are hidden from view by default in Windows in order to further prevent any accidental deletions from occurring.

How can I fix the missing @system32driverspci.sys error? 1. Reconfigure your BIOS

Restart your computer and press the F2 key in order to enter the BIOS mode. The Basic Input/Output System, is the built-in core processor software that is responsible for booting up your computer and serving as the most important startup program on your computer.

Go to the SATA configuration section in order to edit it to Combination mode (AHCI, SATA).

Next, navigate to VGA settings and change the video settings from PEG to PCI.

Save the changes and continue with the boot-up process. Now the missing or corrupt @system32driverspci.sys error should be gone.

2. Use a third-party tool

PC problems will inevitably arise, and resolving them is not always as simple as it appears. However, there are specialized tools available, such as Fortect, that can help you resolve these issues.

It is safe to use because it was developed by a legitimate company that works tirelessly to ensure that the software’s databases are kept up to date at all times.

Expert tip:

The software will diagnose and propose solutions and if you choose to proceed, it will automatically clean or replace the duplicated or corrupted files that caused problems.

⇒ Get Fortect

3. Reinstall your operating system

When developing the operating system, Microsoft’s primary goal was to provide its users with a better overall experience. This included a redesigned user interface, more collaborations for the App Store, and a unique gaming experience.

To name a few features, the streamlined new design includes pastel-like colors and rounded corners, a redesigned Start menu, and larger touch targets for a better PC tablet interface.

As a result of the support for Android apps through the Amazon Store, as well as a new way to see your interests at a glance thanks to the Widgets feature, upgrading to the new operating system is clearly a compelling proposition.

Because this OS iteration represents the most significant change in years, it’s only natural to want to get started using it as soon as possible. For those of you who are concerned due to a message stating your computer is unable to run Windows 11, rest assured that the problem is easily resolved.

4. Upgrade your RAM

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Windows Defender Missing On Windows 11/10

If Windows Defender is missing or you see You’ll need a new app to open this windowsdefender error message in Windows 11/10, here is how you can get rid of the issue and start using Windows Defender or Windows Security. You need to go through all these solutions to troubleshoot the issue.

Windows Defender missing on Windows 11/10

If Windows Defender is missing on Windows 11/10, follow these steps:

Ask your administrator

Start Windows Security Health Service

Reinstall using Windows Terminal

Check Group Policy settings

Use System Restore point

Before you begin, you should know that now Windows Defender is integrated with Windows Security.

1] Ask your administrator

It is the first thing you need to do when Windows Defender is missing on your Windows 11/10 computer. At times, your administrator could disable or remove certain apps or features from all the networked computers. However, if you do not face this problem on an organization computer, you can go through other solutions mentioned below.

2] Start Windows Security Health Service

If the Windows Security Health Service has some issues or you have set an incorrect value, it may not work. In other words, Windows Security or Windows Defender might not be working on your computer. That is why you need to verify if Windows Security Health Service is running or not. Follow the following steps to check that:

Press Win+R to open the Run prompt.

Type regedit and hit the Enter button.

Go to this path: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSecurityHealthService

Set the Value data as 3.

Finally, restart your computer and check if it resolves the issue or not.

3] Reinstall using Windows Terminal

You can reinstall the Windows Defender using Windows Terminal’s CMD or standalone Command Prompt instance. Whether you use Windows 11 or Windows 10, the process is almost the same for both versions. To reinstall Windows Defender using Windows Terminal, follow these steps:

Press Win+X to open the WinX menu.

Select the Windows Terminal (Admin) option.

Ensure that the Command Prompt instance is opened.

Enter this command:

PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage *Microsoft.Windows.SecHealthUI*).InstallLocation + 'AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"

Alternatively, you can open the elevated Command Prompt window and enter the same command as above.


4] Check Group Policy settings

There is a Local Group Policy Editor setting that might be responsible for this error on your computer. Therefore, follow these steps to check the Group Policy setting:

Search for  chúng tôi  in the Taskbar search box.

Choose the Not Configured option.

Then, restart your computer and check if it resolves the problem or not.

Read: Windows Security is not opening or working

5] Use System Restore point

If none of the solutions has worked for you, it is probably the last thing you need to opt for in order to troubleshoot the issue. At times, an adware or malware attack could cause this issue on your computer. In such situations, even if you ditch the adware or malware, it might not fix all the problems. That is why it is recommended to use the System Restore point to get the job done. You can follow this guide to restore Windows using a System Restore point.

Read: Troubleshoot Definition update issues for Microsoft Defender

How do I fix Windows Defender missing?

If Windows Defender is missing on your computer, you need to follow the suggestions mentioned above. Ask your administrator, Start Windows Security Health Service, Reinstall using Windows Terminal, Check Group Policy settings or use System Restore point.

How do I restore Windows Defender?

To restore Windows Defender or Windows Security in Windows 11/10, you can follow the solutions mentioned above. However, you may not be able to do that when your system administrator has blocked access. Otherwise, you can start the Windows Security Health Service using Registry Editor, reinstall the app using Windows PowerShell, etc.

That’s all! Hope these solutions worked for you.

Read: Cannot or Unable to turn on Windows Defender.

Local Security Policy Missing In Windows 11: How To Add It

Local Security Policy Missing in Windows 11: How to Add It Add the Local Security Policy Console using these easy methods




The Local Security Policy is a collection of settings that can be used to configure your system’s security. 

You can use it to view and edit the audit policies, user rights assignments, and other system policies on your computer.

If your version of Windows is supported, you can easily add it if it’s missing from your OS.



Fix Windows 11 OS errors with Fortect:

This tool repairs common computer errors by replacing the problematic system files with the initial working versions. It also keeps you away from system errors, BSoDs, and repairs damages made by malware and viruses. Fix PC issues and remove viruses damage now in 3 easy steps:

Download and Install Fortect on your PC

Launch the tool and Start scanning to find broken files that are causing the problems

Fortect has been downloaded by


readers this month.

The Local Security Policy console is related to the Group Policy Management console. It is useful for setting up security policies for individual computers or groups of computers on your network. You can use it to configure settings such as account policies, audit policies, and much more.

It is important to note that the Local Security Policy may be missing in some older Windows versions, particularly the Home editions. If this is the case, we show you different ways to add it to your Windows 11 in this article.

Does Windows 11 have security protection?

The Windows operating system has always been a target for hackers. Windows 11, however, has been designed to be more secure than ever before. The operating system offers several security features to prevent malware from spreading and protect users from attacks.

To start, Windows 11 has a built-in antivirus and antimalware software called Windows Defender. However, there are some other security features that you can use to help protect your PC.

For instance, Windows Hello is a facial recognition feature that lets you log in using just your face instead of typing in a password or PIN every time you want to use your computer. 

We also have an in-depth comparison of Windows Hello vs Windows Hello for Business, so be sure to check that out. This feature works with many devices, including PCs and laptops, tablets, smartphones, and desktops. 

Whereas these features may enhance your Windows security, you need to take additional steps to secure your system.

These include:

Use a good antivirus program – Although Windows Security offers great security, it is not as comprehensive as other antiviruses.

Install Windows updates as soon as they are available – Security updates are critical to the smooth running of your PC. 

Set up a firewall to block incoming traffic from unknown sources – Firewalls will help block any potential risks from a mile away.

Don’t connect to public Wi-Fi networks unless you really need to – Public Wi-Fi is a no-go zone for any internet user, as cyber attackers are always lurking.

Keep your software up-to-date at all times – Ensure that all your programs and drivers are up-to-date so that if an opportunity to explore vulnerabilities presented itself, you’ll be protected.

How do I add a Local Security Policy in Windows 11?

Expert tip:

To do so:

Hit the Windows + R keys to open the Run command.

Type Winver in the dialog box, then hit Enter. A prompt will appear with details about your OS.

Once you verify that your version of Windows can download the Local Security Policy console, proceed to the following steps to add it.

1. Use Task Manager  2. Use File Explorer 

Hit the Windows + E keys to open File Explorer.

Type chúng tôi on the address bar and hit Enter.

The Local Security Policy window will open.

3. Use the Run command

Hit the Windows + R keys to open the Run command.

Type chúng tôi in the dialog box and hit Enter.

The Local Security Policy window will open.

4. Use the Command Prompt 5. Use Powershell  6. Create a shortcut

If you’re already familiar with creating shortcuts in Windows 11, creating a shortcut for the Local Security Policy should be easy. Shortcuts are very useful for making your life easier and more efficient. 

Creating a shortcut is the most efficient way to add the Local Security Policy, especially if you don’t want to go through multiple steps.

Consequently, when you search for the Local Security Policy using the Search icon, you can pin it to your Taskbar. This will make it appear alongside your frequently used applications and be easy to locate.

With all this talk about security, you may also be interested in some of the best Windows 11 security settings to ensure your system is attack-free.

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5 Best Windows 11 Dark Themes To Download

5 Best Windows 11 Dark Themes to Download








Windows 11 boasts an overhauled user interface with new themes and wallpapers.

As expected, it is dominated by light themes with only a switch to the dark mode giving your eyes respite.

While the dark mode is outstanding, the best Windows 11 dark themes give you more customization options to take the visuals to new levels.

Everything looks nice and attractive on Windows 11. New wallpapers and themes of the highest quality matched with a modern-day interface and glossy texture.

However, the diversity of the built-in themes is limited – just five of them. This limitation is more noticeable when you need a customizable dark theme for a change only to be stuck with its less dynamic dark mode.

With the visuals of Windows 11, you sure deserve more attractive options than its dark mode offers. And this is exactly what the best dark Windows 11 themes offer at exceptional levels.

When these themes are matched with impressive features of the new OS, the possibilities of attractiveness will be endless while also keeping your young eyes safe.

Does applying new themes affect my battery life?

An installed theme contains files that majorly determine the appearance of your PC. It has nothing to do with power consumption. Even third-party themes only make changes to your system files.

However, it should be noted that you need to create a restore point before you start installing a new theme. This will allow you to restore the original files and configurations if there is a problem during or after installation.

What are the best Windows 11 dark themes?

This is a great theme to protect your eyes if you use your PC for long hours. Unlike some other dark themes that do not show text clearly, the Grey Eve skin creates a nice balance between a classy black mode and clarity.

It has a friendly interface that can be customized as much as possible. Also, it has a high contrast theme with quality viewing. But this can make some features look different from what you are used to.

⇒ Get Grey Eve Skin

This is a cool theme that adds some Ubuntu flair to Windows 11. With orange hues and many flat iconographies, it is safe to say that its inspiration is from the well-known Linux distro.

Another good thing about this theme is that it is completely ad-free. It does bring any unnecessary notifications and recommendations.

What’s more, you can customize the Ubuntu dark theme to any length to suit your needs. Note that you should be running the UxThemePatcher before installing this theme for a smooth and error-free installation.

⇒ Get Ubuntu dark theme for Windows 11

Expert tip:

The Nightfall Camo Special Edition packs in 9 amazing images. These images are different variations of dark blue colors. They are all eye-catching and do not strain the eyes after long-term use.

⇒ Get Nightfall Camo special edition

If you love the view of the northern lights, then you will surely appreciate this dark theme. It packs in a nice collection of wallpapers that gives your PC a unique style and an interface that looks like the night.

Night Skies Premium has a total of 20 premium 4k wallpapers. These wallpapers include stars, moons, the Milky Way, and many more eye-catching views.

Note that this theme is not a complete package. It lacks all the special icons and some other tools in the complete theme packages. But its cool wallpaper collection alone is enough to make you consider it.

⇒ Get The Northern Lights

The Everforest is a night-only theme with some outstanding features. It includes three night themes for Windows 11 and 10, which allow you to change between them as you wish.

There are many Wallpapers for you to choose from. It also features the much-heralded dock for easy file access.

There is also the StartIsBack and StartAllBack custom start menu, start orbs, and taskbar for full customization. Add the endless tools and extras, and you have a well-packaged and effective Windows 11 dark them.

⇒ Get Everforest for Windows

How to change Windows 11 theme

Changing Windows 11 theme is as straightforward as it can be, as shown above.

Aside from this list of best Windows 11 dark themes, you can also check out our selection of the best Windows 11 themes containing some magnificent picks to diversify your themes collections.

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How To Fixerror On Windows 11

How To Fix chúng tôi Error On Windows 11 Possible Causes of chúng tôi Error?

Outdated BIOS

Corrupted graphics cards driver

Dysfunctional hard disk or RAM

TDRdelay set to lower

A problem pertaining to hardware acceleration

Also Read: Error Code 0xc00000e9 in Windows 10 resolved

Ways To Fix chúng tôi Error On Windows 11

– Check The DirectX Diagnostic Tool

Press Windows + R to open the Run dialog box

Type dxdiag and press enter

Focus straight at the bottom of the screen i.e. under the Notes Act upon the mentioned problem

One of the first things that you should do to fix the chúng tôi issues on your Windows 11 PC are to update your BIOS. For this, head to your model’s official website. For example, many HP users who have Windows 11 desktops or laptops have reported this issue. So, if you are an HP user, you can visit HP’s official website. Look for any BIOS versions for your model number.

Next, download this update that will appear in the form of a zipped file. Go ahead and extract all the contents. Before going forward and updating your system’s BIOS, we urge you to go through the procedure as per your model and make and also refer to our post that talks at length about how you can update BIOS in Windows.

– Use A Stable Version of Windows 11

While many current laptops and desktops come pre-installed with Windows 11, many users might have installed Windows 11 via Windows 11 insider developer’s build. Now, if you have gotten hands-on Windows 11 via the latter option, you might have fetched an unstable version. The developer builds (not all of them) are reportedly causing software issues. So, how do you find out what version of Windows 11 you are using? Here are the steps –

Press Windows + R keys to open the Run dialog box

When the dialog box appears type winver and press Enter

What you have to do is, search if it’s a developer’s build or a stable build. It is highly recommended that you install a stable build only

– Uninstall and Reinstall Graphics Card Driver

If the culprit is your graphics card driver, you can try uninstalling and reinstalling your graphics card.

To make things easier, you can always count on a driver updater tool that will be able to look for the right graphics card driver and then install it for you. In fact, unlike the manual ways, you can use a driver updater tool like Smart Driver Care and even schedule a driver scan as per your needs. Apart from that, you can even take a backup of your graphics driver beforehand that you can restore, in case of an emergency.

Quite possibly, you are running an older version of Windows because of which you are facing the chúng tôi issue on your Windows 11 system. A quick update might be able to resolve the issue. To update Windows 11-

If there are any updates fetch them

– Use A Third-Party Software To Get To The Core of The Problem

Sometimes manual ways of resolving the chúng tôi issue might not work. And, because the aforementioned issue can also occur because of a dysfunctional hard disk or RAM, you can take the help of a Windows cleaning and optimization tool like Advanced System Optimizer which would effortlessly help you get to the core of the issue.

What is Advanced System Optimizer?

Advanced System Optimizer is one of the best RAM and junk cleaning tools. The various inherent modules also help you tune up your computer for optimum performance. The best part is that it works for all major versions of Windows (including the current Windows 11).  To know the tool better, you can check out our review of Advanced System Optimizer.

How To Use Advanced System Optimizer?

While several powerful modules can help you clean your computer as well as improve its performance, here is how you can use Advanced System Optimizer to scan for any possible issues that might be causing chúng tôi –

1. Download, install and run Advanced System Optimizer

3. Choose scan type – Quick Scan, Deep Scan, and Custom Scan

Wrapping Up:

Quick Reaction:

About the author

Sarang Bhargava

How To Download Official Windows 11 Iso And Perform A Clean Install

At times, even after following appropriate fixes, some issues don’t get resolved on Windows. For example, if you are facing the no sound issue on Windows 11, it’s likely you need to download Windows 11 and perform a clean install to fix the problem. Along the same lines, the black screen issue on Windows 11 is a frustrating snag that repeats after every update. To resolve all these problems, it’s better to start from a clean slate. So in this guide, we bring you a simple tutorial on how to download Windows 11 from Microsoft’s official website and also, clean install Windows 11 on any PC. So without wasting any time, let’s jump to the steps.

We have explained the steps to download Windows 11 from Microsoft’s official website. In addition, we have added detailed steps on how to clean install Windows 11 on your PC right away. You can move to the relevant section from the table below.

Download Windows 11 From the Official Microsoft Website

1. First of all, open Microsoft’s official page to download Windows 11. Once here, scroll down and move to the “Download Windows 11 Disk Image (ISO) for x64 devices” section.

How to Perform a Clean Install of Windows 11

1. Go ahead and download Rufus from here. It’s a free and open-source program that lets you quickly create an installation media. Now, insert a USB thumb drive into your PC and launch Rufus. It will automatically detect the USB drive.

4. After the flashing process is done, close Rufus and restart your computer. As your PC boots up, start pressing the boot key continuously.

Note: On HP laptops, pressing the “Esc” key during startup brings up the Startup menu. For other laptops and desktops, you will have to look for the boot key on the Internet. It should be one of these: F12, F9, F10, etc.

5. Now, select the USB drive on which you flashed Windows 11 and hit Enter.

8. And that’s it. A fresh copy of Windows 11 will now be installed on your PC. If you face any error here, you can follow our guide and bypass Windows 11’s requirements including CPU, TPM, Secure Boot, and more.

9. After the installation, when the computer restarts, unplug the USB thumb drive, and you will boot right into Windows 11’s onboarding (OOBE) setup. Now, go ahead and set up Windows 11. In case, you want to create a local account on Windows 11 during setup, follow our tried-and-tested methods from the linked article.

10. And there you have it! Windows 11 clean installed on your PC.

Download and Clean Install Windows 11 on Your PC

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