All About Fix LSASS High RAM and Disk usage on Windows 11

All About Fix LSASS High RAM and Disk usage on Windows 11

Windows 11 has been the talk of the town ever since its release earlier this year. With its innovative design and new features, users have been flocking to upgrade their devices to this latest version of Windows. However, some users have reported encountering an issue with the LSASS process, where it consumes high RAM and disk usage, causing their systems to slow down. This error can be frustrating and disruptive to daily tasks, but fear not, as we have put together a comprehensive guide to understanding and fixing LSASS high RAM and disk usage on Windows 11. In this article, we will delve into the basics of LSASS, discuss the reasons behind the high memory and disk usage, and provide effective solutions to resolve this issue. So, let

How to Fix LSASS High RAM and Disk usage on Windows 11?

LSASS (Local Security Authority Subsystem Service) is a crucial process that runs in the background on your Windows 11 PC. It is responsible for maintaining system security and managing user logins, among other tasks.

However, some users have reported that LSASS is consuming a high amount of RAM and disk usage on their system, causing their PC to slow down. In this article, we will explore some possible solutions to fix this issue.

1. Perform a Virus Scan
The first step to fix high LSASS RAM and disk usage on your PC is to perform a virus scan. Malware or viruses can cause LSASS to consume excessive resources, so it is essential to scan your system using an antivirus software. If any malicious files are found, remove them immediately.

2. Update Windows and Drivers
Outdated Windows and drivers can also cause high resource usage on your PC. Make sure you have the latest updates installed by going to Settings > Update & Security > Windows Update and checking for updates.

You should also update your device drivers to the latest version. You can do this by going to Device Manager, right-clicking on a device, and selecting “Update driver.”

3. Disable Autostart Programs
Some applications, especially security software, can cause high LSASS usage on your PC. Try disabling any third-party security software and see if the issue persists.

You can also disable unnecessary programs from starting up automatically by going to Task Manager > Startup and disabling any programs that you don’t need.

4. Perform a Clean Boot
A clean boot involves starting your PC with only the essential Windows services and drivers. This can help identify if there is any third-party software or service causing the high LSASS usage.

To perform a clean boot, follow these steps:

1. Press Windows + R, type “msconfig” and press Enter to open System Configuration.

2. In the General tab, click on “Selective startup” and uncheck the box next to “Load startup items.”

3. Go to the Services tab, check the box next to “Hide all Microsoft services,” and click on “Disable all.”

4. Click on the Startup tab and click on “Open Task Manager.”

5. In the Startup tab, disable all the programs.

6. Close Task Manager and click on “OK” in System Configuration.

7. Reboot your PC and check if the LSASS usage has decreased.

8. If the issue does not occur, you can enable the services and startup programs one by one to identify the culprit.

5. Check for Corrupted System Files
If none of the above solutions work, it is possible that some of your system files have become corrupted, causing the high LSASS usage. To fix this, you can use the built-in System File Checker tool.

1. Press Windows + R, type “cmd” and press Enter.

2. In the Command Prompt, type “sfc /scannow” and press Enter.

3. The tool will scan and repair any corrupted system files.

6. Reset or Reinstall Windows
If all else fails, you may need to reset or reinstall Windows. This should be your last resort as it will cause you to lose all your data and settings. To reset your PC, go to Settings > Update & Security > Recovery and click on “Reset this PC.”

If the issue persists, you can perform a clean install of Windows 11 by creating a bootable USB drive and following the installation process.

1. Uninstall the Dell SupportAssist Remediation app (if applicable)

Dell SupportAssist is a software application designed to help you keep your Dell computer running smoothly. It offers automated diagnosis and optimization tools to ensure that your device is always performing at its best. However, if you are facing performance issues or simply no longer require this app, you may want to uninstall it from your computer. In this blog post, we will guide you on how to do so.

1. Check if you have Dell SupportAssist Remediation app

Some Dell computers come pre-installed with the Dell SupportAssist Remediation app. If you are not sure whether you have this app on your computer, you can check by searching for it in the Start menu or by going to the “Apps & Features” section in the Control Panel.

2. Uninstall from the Start menu (Windows 10)

If you have Dell SupportAssist Remediation app on your computer, you can easily uninstall it by following these steps:

Step 1: Open the Start menu and search for “Dell SupportAssist.”

Step 2: Right-click on the app and select “Uninstall.”

Step 3: Click “Yes” to confirm the action when prompted.

Step 4: Follow the instructions on the screen to complete the uninstallation process.

3. Uninstall from the Control Panel (Windows 10/8/7)

If you are unable to find the app in the Start menu, you can uninstall it from the Control Panel by following these steps:

Step 1: Open the Control Panel from the Start menu.

Step 2: Click on “Programs and Features” or “Uninstall a program” (depending on your operating system).

Step 3: Find the Dell SupportAssist Remediation app from the list of installed programs.

Step 4: Right-click on it and select “Uninstall.”

Step 5: Follow the instructions on the screen to complete the uninstallation process.

4. Additional steps for complete removal

Even after uninstalling Dell SupportAssist Remediation, you may still find some leftover files or registry entries associated with the app. To completely remove them, you can follow these additional steps:

Step 1: Open the File Explorer and go to the following location: C:\Program Files (x86)\Dell\SARemediation

Step 2: Delete the folder named “SARemediation.”

Step 3: Press the Windows key + R to open the Run dialog box, and type “regedit” in the field.

Step 4: Navigate to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Dell\SARemediation

Step 5: Right-click on the key and select “Delete.”

Step 6: Close the Registry Editor and restart your computer for the changes to take effect.

Congratulations! You have successfully uninstalled Dell SupportAssist Remediation app from your computer. You can now enjoy a clutter-free device and improved performance. If you ever change your mind and want to reinstall this app, you can visit the Dell Support page and download it from there.

2. Perform a Clean Boot

2. Perform a Clean Boot

Performing a clean boot is a useful troubleshooting technique that can help identify and resolve issues related to software conflicts or system errors. In this blog post, we’ll discuss what a clean boot is, how it can be performed, and when it’s recommended to do so.

What is a Clean Boot?

A clean boot is a process of starting your computer with a minimal set of drivers and startup programs. This means that only essential drivers and services are loaded during the boot process, while all non-essential programs and services are disabled. By doing so, you can isolate any conflicts or errors caused by third-party software and determine if they are the root cause of your computer issues.

How to Perform a Clean Boot?

Follow these steps to perform a clean boot on your Windows computer:

1. Press the Windows key + R to open the Run dialog box. Type “msconfig” and press Enter.

2. In the System Configuration window, click on the “Selective startup” option under the General tab.

3. Uncheck the “Load startup items” box and make sure that “Load system services” and “Use original boot configuration” boxes are checked.

4. Click on the “Services” tab, then check the “Hide all Microsoft services” box. Click on “Disable all” to disable all third-party services.

5. Click on the “Startup” tab and click on “Open Task Manager”.

6. In the Task Manager, disable all startup items by right-clicking on each entry and selecting “Disable”.

7. Click on “OK” in the System Configuration window and restart your computer.

Your computer will now start with a clean boot, and only essential drivers and services will be loaded.

When to Perform a Clean Boot?

There are a few scenarios where performing a clean boot can be helpful:

1. If you encounter error messages or performance issues on your computer that may be caused by third-party software.

2. When you want to identify the specific program or service causing an issue on your computer.

3. Before installing new software or updates, as a precautionary measure to avoid potential conflicts.

4. When troubleshooting a specific issue recommended by a support article or technician.


Performing a clean boot is a simple and effective troubleshooting technique that can help identify and resolve issues with your computer. By isolating third-party software and services, you can pinpoint the source of the problem and take the necessary steps to resolve it. If the issue persists even after a clean boot, it could indicate a problem with your operating system, and you may need to seek professional assistance.

3. Install Pending Updates

Updates are an essential aspect of any device, whether it’s a computer, a smartphone, or a tablet. They not only improve the overall performance of the device but also provide security patches to protect it from potential threats. However, most users tend to ignore pending updates until they become an unavoidable nuisance. In this blog, we will discuss the importance of installing pending updates and the steps to do so.

1. Why should you install pending updates?

The most obvious reason to install pending updates is to keep your device up to date. Developers constantly release updates to fix bugs, add new features, and enhance the overall performance of the device. By installing these updates, you are ensuring that your device is running on the latest and most secure version.

Moreover, pending updates often include important security patches that protect your device from potential cyber threats. Hackers are always looking for vulnerabilities in devices to gain unauthorized access and compromise sensitive information. Therefore, it is crucial to install updates promptly to keep your device secure.

2. How to check for pending updates?

The process of checking for pending updates varies depending on the device you are using. Here are a few general methods to check for updates:

– For Windows computers, go to the Start menu and search for “Windows Update.” Click on it to open the Windows Update settings. Here, you can see all the available updates and install them.
– For macOS, go to the Apple menu and click on “System Preferences.” Then, click on “Software Update” to check for available updates.
– For Android devices, go to Settings > System > Advanced > System updates. If there are any pending updates, you will see a message and an option to install them.
– For iOS devices, go to Settings > General > Software Update to check for pending updates.

3. Steps to install pending updates:

Once you have checked for pending updates, follow these steps to install them:

– Select the updates you want to install and click on “Install” or “Update.”
– Depending on your device, it may take a few minutes for the updates to download and install.
– Once the installation is complete, restart your device if prompted.
– In some cases, you may need to enter a password or biometric authentication to confirm the installation.
– After the update is installed, check for any new updates and continue the process until there are no more pending updates.

In conclusion, installing pending updates is crucial for the smooth functioning and security of your device. Therefore, make it a habit to regularly check for updates and install them as soon as they become available. This will not only improve your device’s performance but also protect your data from potential cyber threats.

4. Check for Malware

Malware, also known as malicious software, is a type of harmful program designed to disrupt, damage, or gain unauthorized access to a computer or network. It can cause various issues such as slowing down your computer, stealing personal information, or displaying annoying pop-ups and ads. As a tech blogger, it is important to know how to check for malware on your devices and how to protect yourself from it.

Here are 4 steps to check for malware on your computer:

1. Update your anti-virus software
The first step to protecting your computer from malware is having a reliable anti-virus software installed and regularly updating it. Anti-virus software scans your system for known malware and prevents any malicious programs from infecting your device.

2. Perform a full system scan
Once your anti-virus software is up to date, perform a full system scan to search for any potential threats. This may take some time depending on the size of your hard drive and the number of files on your computer. Make sure to let the scan run its course without interrupting it.

3. Use online malware scanners
In addition to your local anti-virus software, you can also use online malware scanners to do a thorough check of your system. There are many reputable websites that offer free online malware scanning services. Some popular options include VirusTotal, ESET Online Scanner, and Kaspersky Virus Removal Tool.

4. Manually check for suspicious files
If the above steps did not detect any malware, you can still manually check for any suspicious files. Look through your computer’s system folders and scan any newly downloaded or unfamiliar files with your anti-virus software before opening them.

It is also important to take preventive measures to avoid malware in the future. These include being cautious when clicking on links or downloading attachments from unknown sources, keeping your operating system and software up to date, and using a virtual private network (VPN) when connecting to public networks.

In conclusion, as a tech blogger, it is crucial to regularly check for malware on your devices to ensure your personal information and data are safe. By following these steps, you can minimize the risk of malware infecting your computer and protect yourself from potential cyber threats.

5. Deploy SFC and DISM scans

5. Deploy SFC and DISM scans

System File Checker (SFC) and Deployment Image Servicing and Management (DISM) are two powerful tools used for diagnosing and repairing issues with the Windows operating system. In this blog post, we will discuss how to deploy SFC and DISM scans on your computer.

1. What is SFC?

SFC is a command-line tool that scans all protected system files and replaces any corrupted or missing files with the correct versions from the Windows installation media. This helps to ensure that the system files are not damaged or missing, which can lead to various issues like crashes, errors, and software malfunctions.

2. How to deploy SFC scan?

To run an SFC scan:

Step 1: Open the Command Prompt as an administrator. You can do this by typing “cmd” in the search bar, right-clicking on Command Prompt and selecting “Run as administrator”.

Step 2: In the Command Prompt, type “sfc /scannow” and press Enter.

Step 3: The scan will begin and may take some time to complete. Once it’s done, you will see a message stating whether any corrupted files were found and if they were successfully repaired.

Note: If SFC is unable to fix the issues, you can use a Windows installation media to manually replace the corrupted files.

3. What is DISM?

DISM is a command-line tool that is used to service and repair Windows images. It can be used to fix issues with corrupt system files, Windows updates, and even to repair the Windows operating system itself. It is particularly useful when an SFC scan is unable to fix system file issues.

4. How to deploy DISM scan?

To run a DISM scan:

Step 1: Open the Command Prompt as an administrator.

Step 2: In the Command Prompt, type “DISM /Online /Cleanup-Image /RestoreHealth” and press Enter.

Step 3: The scan will begin and may take some time to complete. Once it’s done, you will see a message stating whether any issues were found and if they were successfully repaired.

Note: If DISM is unable to fix the issues, you can use a Windows installation media to repair the system image.

5. When should you deploy SFC and DISM scans?

It is recommended to run SFC and DISM scans when you experience issues with your Windows operating system, such as errors, crashes, or application malfunctions. You can also run these scans as a regular maintenance task to ensure your system files are intact and functioning correctly.

In conclusion, SFC and DISM scans are powerful tools that can help diagnose and repair issues with your Windows operating system. By deploying these scans, you can ensure that your system files are in good condition and your computer is running smoothly.

6. Perform a System Restore

System Restore is a helpful feature in Windows that allows you to revert your computer’s settings and system files to a previous state. This can be useful if you’re experiencing errors or issues with your computer, as it can often fix them by resetting problematic settings. In this blog post, we’ll discuss how to perform a system restore on your Windows computer.

Step 1: Open the System Restore Tool
To begin the system restore process, go to the Start menu and type “system restore” in the search bar. Click on “Create a restore point” from the results.

Step 2: Choose the Restore Point
In the System Properties window that opens, click on the “System Protection” tab. Here, you’ll see a list of restore points. These are snapshots of your computer’s settings and system files at different points in time. Select the restore point you want to use and click on “System Restore.”

Step 3: Confirm the Restore Point
A new window will open, asking you to confirm the restore point you’ve chosen. It’s essential to double-check that you’ve selected the correct restore point, as this cannot be undone once it’s performed. If you’re confident, click on “Next.”

Step 4: Begin the Restore Process
Before the system restore starts, you’ll be given a summary of the changes that will occur. If you’re satisfied with the information, click “Finish” to begin the process.

Step 5: Wait for the Restore to Complete
The system restore process may take some time to complete, so be patient. Your computer will restart during this process, and you may see a “System Restore in Progress” screen. Do not interrupt this process, as it may cause problems with your system.

Step 6: System Restore Complete
Once the system restore is complete, your computer will restart, and you’ll see a message stating that the process was successful. You can now log in and check if the issue you were experiencing has been resolved.

In conclusion, System Restore is an effective way to fix issues on your Windows computer by restoring it to a previous state. If you’re facing any problems with your system, try performing a system restore and see if it helps. It’s always a good idea to create restore points regularly to have multiple options available should you need to use this feature. Keep your computer running smoothly and efficiently with the help of System Restore.

7. Perform a Clean install

A clean install, also known as a fresh install, is the process of wiping all the data on a computer and then reinstalling the operating system. It essentially gives you a clean slate and can help improve the performance and stability of your computer.

Performing a clean install can be a time-consuming process and requires advanced technical knowledge. However, it can be worth it in the long run if your computer is experiencing frequent crashes or becoming slow due to cluttered system files and configurations. Here’s how to perform a clean install on your computer:

1. Backup your important data: Before proceeding with a clean install, make sure to back up all your important files and documents. This process will erase everything on your computer, so it’s crucial to have a backup to restore your data later.

2. Obtain the necessary software: To perform a clean install, you will need a copy of the operating system you want to install. You can purchase it online or use a USB or DVD with the installation files. Make sure to also have a product key or license ready if required.

3. Boot the computer from the installation media: Insert the USB or DVD with the installation files, restart your computer, and boot from it. You may have to press a specific key (usually F2 or F12) during startup to access the boot menu and choose the installation media.

4. Format the hard drive: During the installation process, you will be prompted to choose a location for the OS installation. Select the option to format the hard drive. This will erase all the data on the drive and prepare it for a clean install.

5. Follow the installation prompts: The installation process will vary depending on your operating system. Follow the on-screen prompts to select the language, time and date settings, and other preferences.

6. Install necessary drivers and software: Once the operating system is installed, you will need to reinstall drivers for your hardware and any essential software you need. Make sure to download the latest versions from the manufacturer’s website.

7. Restore your data: After completing the clean install, you can restore your data from the backup you created in the first step. Transfer the files back to your computer and set up any necessary applications.

Performing a clean install may take some time and effort, but it can help improve your computer’s performance and eliminate any underlying issues. It’s also a great way to start fresh with a clutter-free system. Just make sure to back up your data and follow the installation instructions carefully.


In conclusion, the LSASS process plays a vital role in the functioning of Windows 11. However, if you are experiencing high RAM and disk usage due to this process, it can cause sluggish performance and even crashes. By following the steps mentioned in this article, such as disabling unnecessary services, running a malware scan, and updating your system, you can effectively fix LSASS high RAM and disk usage issues on Windows 11. It is also important to regularly maintain and optimize your system to prevent any further problems. With these solutions, you can ensure smooth and efficient performance of your Windows 11 system.

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