Find out how to fix CLASSPNP.SYS error permanently on Windows 10/8/7

Classpnp.sys is a Microsoft Home class system file Windows which comes as a part of the Home Windows desktop system. Although common users do not need to know about the CLASSPNP.SYS file, you can usually encounter errors associated with these crucial system drivers.

The CLASSPNP.SYS error is an error BSOD and renders the affected PC unusable. The error can occur due to a variety of causes, including {hardware} and software program corruption.

Most of the CLASSPNP.SYS error circumstances are associated with hardware failures, while some users have reported that the error appeared after installing a recreation and other Home Windows features.

In this article, we will tell you about all the possible options to fix CLASSPNP.SYS BSOD error on Windows 10, 7, and 8.

Steps to fix CLASSPNP.SYS BSOD error

Answer 1: Uninstall recently installed applications

Some Home Windows customers have reported that the CLASSPNP.SYS error appeared after installing a game or program online. In this case, it is highly likely that the software program is causing the error.

Consultant Image: This system is not associated with error.

If by any chance you can boot into Home Windows and get the previous login screen, try uninstalling the sport or software program. Now, restart the PC and examine if the problem has been resolved.

• Learn Also: 10 Best Uninstaller Apps for PC Clients

Answer 2: Disconnect external hardware/peripherals

Another common reason for the CLASSPNP.SYS error is peripheral drives. If you have {hardware} connected, such as a mouse USB, an external hard drive, a Bluetooth dongle for a Wi-Fi mouse, an external refrigerator, and all other drives on your laptop or PC, try turning them off.

Turn off your PC. Disconnect one of the many peripherals and restart your PC. Do this until you have been able to fix the problem or until all external drives are turned off.

If the error is due to an external device, you can keep it off for some time and examine if it actually works with other units. This can allow you to examine the hardware for any defects.

Answer 3: Initialize the final good configuration recognized

The Windows home system operates with a duplicate of the system {hardware} configuration and driver settings taken from the system registry. In case of failures within the path of Boot, the working system offers the Final Good Configuration Acknowledged option to the boot menu.

In case your PC has already encountered several boot failures, you should use the Final Configuration Acknowledged Good option to boot normally.

The Windows operating system will mechanically display option B oot (A good final configuration is recognized After a series of failures it also attempts to run the system.

Or, you can manually enter this feature by pressing the F8 key urgently until the boot selection screen appears. Make sure that you start pressing the F8 key urgently before Home Windows starts.

Observe: In Windows 8 and Windows 10, the Final Configuration Recognized as Good option is disabled by default. You will need to enable it manually from the Registry Editor.

• Learn more:Unmountable Boot Blue Display Error on PC: 4 Methods to Fix It

Answer 4: Change the SATA mode setting in BIOS

Your PC is configured to use IDE or ACHI mechanism to configure with SATA (Serial ATA). Many customers have reported that changing SATA mode in BIOS settings helped them to fix the CLASSPNP.SYS error.

To enter BIOS setup, restart your PC and keep pressing F2 until you see the BIOS screen. The shortcut key may vary depending on your handheld.

Within the BIOS setup, quickly change the disk mode from AHCI to IDE. Save the settings and exit the BIOS screen.

Observe: If SATA mode is already set to IDE, try changing it to the next setting, which is AHCI or Compatibility mode.

Restart your laptop and check if the CLASSPNP.SYS error is resolved.

Answer 5: Take out the internal {hardware}

The CLASSPNP.SYS error can actually be caused by an internal hardware failure. If you have faulty RAM or a faulty hard drive, this can prevent Home Windows from booting normally.

In case you have added RAM, a video card or a PCI-e card, try to remove them quickly.

Even if you haven't added any new hardware, try removing any additional RAM, video card, PCI-e card, or Wi-Fi card and restarting your PC. You can reinsert the hardware if your PC starts normally.

In case you only have one RAM stick but an empty slot after it, remove and insert the RAM into the empty slot.

Alternatively, you can also use Memtest86+, a memory module that tests the software program and creates a bootable USB drive from it to examine whether there is a faulty memory module. You can get the Memtest86+ ISO from the official site.

Make sure you create a bootable USB stick or CD first. Boot from the USB drive and perform a memory reset, checking to see if there is a faulty memory module. When detected, remove the faulty memory modules and restart the PC.

• Also Learn: 5 Best Hardware Configuration Software for Windows PC Users

Answer 6: Running System File Checker

Microsoft Home Windows work system comes with a built-in system file checking utility. It enables the clients to examine the system for corrupt or missing information and fixes them by replacing the missing file with the cached template of the identical file.

If you can boot into Home Windows, open Immediate command as administrator and the following command sfc / scannow

If you can't get into Home Windows either, this is the best way to run System File Checker from Restore mode.

You can enter recovery mode from the login screen, the top recovery screen, or the recovery screen. Assuming you can't get into Windows either, you're left with two options. Here's the best way to do it.

1 Option: When your PC fails to boot several times, Windows 10 Home presents you with a restore screen. On the restore screen, click See top restoration options.

Possibility 2: You can also enter Restore Mode urgently with the F8 key.

Turn off your PC. Press the start button and keep pressing F8 until you see the recovery screen.

Run System File Checker from Restore Mode

1. From the screen Select an option click the option Problem solving .

2. Click on The best options. Below Higher Chance, choose Immediate command

3. Upon reboot, enter the following command into the command window: commands immediate.

 sfc /Scannow 

If that command didn't work, do this. This command will only scan the C: drive for errors

Sfc /scannow /OFFBOOTDIR=C: /OFFWINDIR=C:Windows Startup >

System File Checker will now check if the C: drive is broken or missing information and will attempt to restore it with new information.

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Answer 7: Restore Home Windows to a previous level

All Windows home computer systems include the option System restore . System Restore capabilities allow you to create a system restore level and reserve it for the native drive.

Home Windows automatically creates restore factors and saves a working copy of the system before making essential adjustments, such as using new updates or installing software.

If something goes wrong with your system, you can return it to a working state by restoring your computer to a previous level and undoing system settings.

You can enter System Restore properties from the desktop or from the Restore option.

Option 1: If you manage to connect and enter the desktop, do the following.

Use cases Restore within the Cortana/Search bar and choose the option Create a system restore level . This can open the System properties .

Option 2: If you are unable to log in or access Windows, do the following:

1. When the PC fails to start the boot path repeatedly, it will display a restore screen (auto restore screen). On the screen Restore screen click See top options.

2. The PC will reboot with Select a choice screen . Click the option Problem solving .

3. Then click The best options and choose Restore the system.

Perform system restore

1. En System restore click on the Later .

2. Home windows will likely display the most recently created restoration level. To see all restoration factors, click the » button. Show additional restoration factors «.

3. Now you'll need to figure out which level to recover to use it. I'd recommend starting with the most recent one first.

4. Choose a restoration level and click the » button Find affected apps» . This may show you all the affected apps (uninstalled/reinstalled) if you proceed with a system restore.

5. Click on Later . Learn the affirmation message and press End.

Home Windows will take a few minutes to an hour to complete the system restore process.

If the CLASSPNP.SYS error is resolved, you don't need to do anything. If not, try different restore factors until the problem is resolved.

• Learn more: Discover how to create a restore level from the Windows 10 Home desktop

Answer 8: Clean and configure the windows of the house

This is the least helpful resolution to fix the CLASSPNP.sys error. However, if the problem started on a new laptop or after introducing updates, clearing the Home Windows settings with the latest existing model may fix the problem.

Make sure you have all the information together before performing a clean setup. You can check out one of our guides that explains the best way to setup Home Windows 10 Creators Replace from an ISO file.

Conclusion

The most common reason for CLASSPNP.sys errors is hardware failure or corrupted drivers. Typically, Windows may not be able to detect the hardware accurately, which can lead to malfunctions and prevent the system from booting normally.

Get all the really useful options from this article and see which one sticks to the wall.

Also, don’t forget to let us know which resolution helped you fix your PC in the comments below.

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