Complete Guide: How to Completely Uninstall Kaspersky Antivirus from Your Computer
Uninstalling Kaspersky antivirus can sometimes be trickier than installing it. Simply deleting the program files might not remove it completely, leaving behind residual files, registry entries, and drivers that can interfere with future software installations or system performance. This comprehensive guide provides multiple methods to completely uninstall Kaspersky from your Windows or macOS system, ensuring a clean and thorough removal.
Why Completely Uninstall Kaspersky?
Before diving into the how-to, let’s understand why a complete uninstall is crucial:
* **Avoid Conflicts:** Remnants of Kaspersky can conflict with other antivirus software or security tools you might want to install later.
* **System Stability:** Leftover files and registry entries can sometimes lead to system instability, slowdowns, or errors.
* **Privacy Concerns:** Some users are concerned about data collection, even after uninstalling the main program. A complete removal ensures all traces are gone.
* **Free Up Resources:** Even inactive, residual files can consume disk space and system resources.
* **Clean Reinstallation:** If you plan to reinstall Kaspersky, a clean uninstall ensures a fresh start without any previous settings or corrupted files interfering.
Methods for Uninstalling Kaspersky
We’ll cover several methods, starting with the simplest and progressing to more thorough options. It’s recommended to try them in order.
Method 1: Using the Standard Windows Uninstall Feature (Programs and Features)
This is the most basic way to uninstall any program in Windows.
**Steps:**
1. **Close Kaspersky:** Ensure Kaspersky is completely closed. Look for the Kaspersky icon in the system tray (usually in the bottom-right corner of your screen). Right-click on the icon and select “Exit” or “Quit.” If you don’t see the icon, it might be hidden. Click the small arrow pointing upwards in the system tray to reveal hidden icons.
2. **Open Programs and Features:**
* **Windows 10/11:** Click the Start button, type “Control Panel,” and press Enter. In the Control Panel, click on “Programs” and then “Programs and Features.”
* **Windows 7/8/8.1:** Click the Start button, click “Control Panel,” and then click “Uninstall a program” under the “Programs” section.
3. **Locate Kaspersky:** In the list of installed programs, find “Kaspersky [Your Product Name]” (e.g., Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Anti-Virus). The exact name may vary depending on your Kaspersky product.
4. **Uninstall:** Select the Kaspersky entry and click the “Uninstall” button at the top of the list. Alternatively, you can right-click on the Kaspersky entry and select “Uninstall.”
5. **Kaspersky Uninstall Wizard:** The Kaspersky Uninstall Wizard will appear. Follow the on-screen instructions.
* **Save Objects:** You’ll be prompted whether to save certain objects. By default, it usually offers to save license information. You can choose to keep the license information if you plan to reinstall Kaspersky later. However, if you’re uninstalling to troubleshoot issues, it’s best to uncheck all boxes to ensure a completely clean removal.
* **Confirm Uninstall:** You might be asked to confirm your decision. Click “Yes” or “Uninstall” to proceed.
6. **Restart Your Computer:** After the uninstall process is complete, you’ll be prompted to restart your computer. This is crucial to remove any remaining files and drivers that are still in use. Click “Yes” to restart immediately, or “No” to restart later. It’s highly recommended to restart immediately.
**Limitations:**
This method often leaves behind residual files and registry entries. If you experience issues after uninstalling, or if you want a truly clean removal, proceed to the next methods.
Method 2: Using the Kaspersky Removal Tool (kavremover)
Kaspersky provides a dedicated removal tool called `kavremover` that is specifically designed to completely uninstall Kaspersky products. This tool is more thorough than the standard Windows uninstaller.
**Steps:**
1. **Download kavremover:** Go to the official Kaspersky website and download the kavremover tool. You can typically find it by searching for “Kaspersky removal tool” or “kavremover” on the Kaspersky support website. Make sure you download the tool from the official Kaspersky website to avoid downloading malware. A direct link is usually provided in Kaspersky’s support articles about uninstalling their products. The file is usually a small executable file (e.g., `kavremover.exe`).
2. **Run kavremover in Safe Mode (Recommended):** Running kavremover in Safe Mode is highly recommended to ensure that Kaspersky processes are not running and interfering with the removal process. This results in a cleaner uninstall.
* **How to enter Safe Mode:**
* **Windows 10/11:**
* Press the Windows key + I to open Settings.
* Click on “Update & Security” (or “Windows Update” in Windows 11).
* Click on “Recovery.”
* Under “Advanced startup,” click “Restart now.”
* After your computer restarts, you’ll see a blue screen with options. Select “Troubleshoot” > “Advanced options” > “Startup Settings” > “Restart.”
* After your computer restarts again, you’ll see a list of startup options. Press the number key corresponding to “Enable Safe Mode” or “Enable Safe Mode with Networking” (usually 4 or 5). “Safe Mode” is sufficient for running kavremover; “Safe Mode with Networking” is only needed if you need internet access to download the tool, although it’s preferable to download it before entering Safe Mode.
* **Windows 7/8/8.1:**
* Restart your computer.
* As your computer restarts, repeatedly press the F8 key. This will bring up the Advanced Boot Options menu.
* Use the arrow keys to select “Safe Mode” and press Enter.
3. **Run kavremover as Administrator:** Locate the `kavremover.exe` file you downloaded. Right-click on the file and select “Run as administrator.” This is necessary for the tool to have the required permissions to remove Kaspersky files and registry entries.
4. **Enter the Code:** The kavremover tool will display an image with a code. Type the code exactly as it appears in the image into the text box. This is a CAPTCHA to prevent automated use of the tool.
5. **Select Kaspersky Product:** From the drop-down list, select the Kaspersky product you want to uninstall. If you have multiple Kaspersky products installed, you’ll need to run kavremover for each one separately.
6. **Remove:** Click the “Remove” button. The tool will then begin the uninstall process. This may take several minutes to complete.
7. **Restart Your Computer:** After the removal process is complete, kavremover will prompt you to restart your computer. Click “OK” to restart. This is essential to finalize the removal process.
**Important Notes:**
* **kavremover is powerful:** Use it with caution. It can remove all traces of Kaspersky, including license information. Make sure you have your license key or activation code if you plan to reinstall Kaspersky later.
* **Back up your system:** Before running kavremover, it’s always a good idea to create a system restore point or back up your important data, just in case something goes wrong.
* **Run it in Safe Mode:** As mentioned earlier, running kavremover in Safe Mode is highly recommended for a more thorough removal.
Method 3: Manual Removal (Advanced Users Only)
This method involves manually deleting Kaspersky files and registry entries. **This method is only recommended for advanced users who are comfortable working with the Windows Registry Editor and understand the risks involved. Incorrectly modifying the registry can cause serious system problems.**
**Disclaimer:** I am not responsible for any data loss or system damage caused by incorrectly following these instructions. Proceed at your own risk.
**Steps:**
1. **Back Up the Registry:** Before making any changes to the registry, it’s crucial to create a backup. In Registry Editor, go to “File” > “Export.” Choose a location to save the backup file (e.g., Desktop) and give it a descriptive name (e.g., “RegistryBackupBeforeKasperskyUninstall”). Under “Export range,” select “All.” Click “Save.”
2. **Stop Kaspersky Services:**
* Press Windows key + R to open the Run dialog box.
* Type `services.msc` and press Enter.
* In the Services window, look for any services related to Kaspersky (e.g., “Kaspersky Anti-Virus Service,” “Kaspersky Security Service”).
* Right-click on each Kaspersky service and select “Stop.”
* Set the Startup type to “Disabled” after stopping each service.
3. **Show Hidden Files and Folders:**
* **Windows 10/11:** Open File Explorer, click the “View” tab, and check the box labeled “Hidden items.”
* **Windows 7/8/8.1:** Open File Explorer, click “Organize” > “Folder and search options.” Go to the “View” tab and select “Show hidden files, folders, and drives.” Uncheck the box labeled “Hide protected operating system files (Recommended)” and click “Yes” to confirm.
4. **Delete Kaspersky Program Files:**
* Navigate to the following directories and delete any folders related to Kaspersky. The exact paths may vary slightly depending on your Kaspersky product and Windows version. Typical locations include:
* `C:\Program Files\Kaspersky Lab`
* `C:\Program Files (x86)\Kaspersky Lab` (if you’re using a 64-bit version of Windows)
* `C:\ProgramData\Kaspersky Lab` (This folder is usually hidden)
* `C:\Users\[Your Username]\AppData\Roaming\Kaspersky Lab` (Replace `[Your Username]` with your actual username. This folder is usually hidden.)
* `C:\Users\[Your Username]\AppData\Local\Kaspersky Lab`
* **Important:** Be very careful when deleting files in the `Program Files` and `ProgramData` folders. Only delete folders that are clearly related to Kaspersky.
5. **Remove Kaspersky Registry Entries:**
* Press Windows key + R to open the Run dialog box.
* Type `regedit` and press Enter. This will open the Registry Editor.
* Navigate to the following registry keys and delete any subkeys or values related to Kaspersky. **Be extremely careful when modifying the registry.** Incorrectly deleting registry entries can cause serious system problems.
* `HKEY_LOCAL_MACHINE\SOFTWARE\KasperskyLab`
* `HKEY_CURRENT_USER\SOFTWARE\KasperskyLab`
* `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall` (Look for a key that corresponds to your Kaspersky product and delete it.)
* `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services` (Look for any services that start with “KL” or “Kaspersky” and delete them. Be *absolutely* sure you are deleting the correct services.)
* `HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\KasperskyLab` (if you are on a 64 bit system)
* **Important:** Before deleting any registry key, right-click on it and select “Export” to create a backup of that key. This will allow you to restore the key if you accidentally delete something important.
6. **Restart Your Computer:** After deleting the files and registry entries, restart your computer to finalize the removal process.
**Why this method is risky:**
* **Accidental Deletion:** It’s easy to accidentally delete important system files or registry entries, which can cause your computer to malfunction.
* **Complexity:** Identifying all the Kaspersky-related files and registry entries can be time-consuming and requires a good understanding of the Windows operating system.
* **Potential Instability:** Even if you carefully follow the instructions, there’s still a risk of causing system instability.
**Recommendation:** Only attempt this method if you are an experienced user and have a recent backup of your system. It’s generally safer and easier to use the Kaspersky Removal Tool (kavremover) instead.
Method 4: Using Third-Party Uninstaller Software
Several third-party uninstaller programs can help you completely uninstall software, including Kaspersky. These programs typically scan your system for leftover files and registry entries after the standard uninstall process and remove them.
**Examples of Third-Party Uninstallers:**
* **Revo Uninstaller:** A popular uninstaller program with a free and paid version. The free version offers basic uninstall features, while the paid version includes more advanced scanning and removal options.
* **IObit Uninstaller:** Another popular uninstaller program with a user-friendly interface. It can uninstall programs, remove browser plugins, and clean up leftover files and registry entries.
* **CCleaner:** While primarily known as a system cleaning tool, CCleaner also includes an uninstaller feature that can remove programs and clean up leftover files.
**How to Use a Third-Party Uninstaller (Example: Revo Uninstaller):**
1. **Download and Install:** Download and install your chosen uninstaller program from its official website.
2. **Run the Uninstaller:** Launch the uninstaller program.
3. **Locate Kaspersky:** In the list of installed programs, find “Kaspersky [Your Product Name].”
4. **Uninstall:** Select the Kaspersky entry and click the “Uninstall” button. Revo Uninstaller, for example, offers different uninstall modes (Built-in, Safe, Moderate, Advanced). Start with the “Moderate” mode. It will first run the program’s built-in uninstaller (like Method 1). After the built-in uninstaller is finished, Revo Uninstaller will scan for leftover files and registry entries.
5. **Scan for Leftovers:** The uninstaller will scan your system for leftover files and registry entries. Review the list of found items and select the ones you want to remove. Be cautious about deleting registry entries; only delete entries that are clearly related to Kaspersky.
6. **Delete Leftovers:** Click the “Delete” or “Remove” button to delete the selected leftover files and registry entries.
7. **Restart Your Computer:** After the uninstall process is complete, restart your computer.
**Advantages of Using a Third-Party Uninstaller:**
* **More Thorough Removal:** Third-party uninstallers typically do a more thorough job of removing leftover files and registry entries than the standard Windows uninstaller.
* **User-Friendly Interface:** Many third-party uninstallers have a user-friendly interface that makes it easy to uninstall programs and clean up leftovers.
* **Additional Features:** Some third-party uninstallers offer additional features, such as browser plugin removal and system cleaning tools.
**Disadvantages of Using a Third-Party Uninstaller:**
* **Potential for Bloatware:** Some free uninstallers may try to install additional software or toolbars during the installation process. Be sure to pay attention during the installation and uncheck any unwanted offers.
* **Cost:** Some advanced features may require a paid license.
Method 5: Uninstalling Kaspersky on macOS
The process for uninstalling Kaspersky on macOS is different from Windows. Here’s how to do it:
**Steps:**
1. **Quit Kaspersky:** Make sure Kaspersky is completely closed. Look for the Kaspersky icon in the menu bar (usually at the top-right corner of your screen). Click on the icon and select “Quit” or “Exit.”
2. **Open Kaspersky Application:** Open the Kaspersky application from your Applications folder. You can do this by going to Finder > Applications > Kaspersky Internet Security or Kaspersky Security Cloud.
3. **Uninstall:** Within the Kaspersky application, look for an “Uninstall” option. The location of this option may vary depending on the version of Kaspersky you have installed. It’s often found in the Preferences or Settings menu.
4. **Confirm Uninstall:** You’ll be prompted to confirm that you want to uninstall Kaspersky. Click “Uninstall” to proceed.
5. **Enter Administrator Password:** You’ll be prompted to enter your administrator password to authorize the uninstall process. Enter your password and click “OK.”
6. **Restart Your Mac:** After the uninstall process is complete, restart your Mac. This will remove any remaining files and drivers.
**Using the Terminal (Advanced):**
If you’re comfortable using the Terminal, you can also uninstall Kaspersky using the command line.
1. **Open Terminal:** Open the Terminal application from your Applications/Utilities folder.
2. **Run the Uninstall Script:** Type the following command into the Terminal and press Enter:
bash
sudo /Library/Application\ Support/Kaspersky\ Lab/klicensing/klicensing remove
3. **Enter Administrator Password:** You’ll be prompted to enter your administrator password. Enter your password and press Enter.
4. **Delete Kaspersky Application:** Delete the Kaspersky application from your Applications folder.
5. **Restart Your Mac:** Restart your Mac.
**Removing Leftover Files (macOS):**
Even after uninstalling Kaspersky, some leftover files may remain on your system. To remove these files, follow these steps:
1. **Open Finder:** Open Finder.
2. **Go to Folder:** Press Command+Shift+G to open the “Go to Folder” dialog box.
3. **Enter Paths:** Enter the following paths one at a time and delete any files or folders related to Kaspersky:
* `/Library/Application Support/Kaspersky Lab`
* `/Library/Preferences/com.kaspersky.*`
* `~/Library/Application Support/Kaspersky Lab` (Note the `~` which represents your home directory)
* `~/Library/Preferences/com.kaspersky.*`
* `/Library/LaunchDaemons/com.kaspersky.*`
* `/Library/LaunchAgents/com.kaspersky.*`
4. **Empty Trash:** Empty your Trash to permanently delete the files.
**Important:** Be careful when deleting files in the `/Library` folder. Only delete files or folders that are clearly related to Kaspersky.
Troubleshooting Common Uninstall Problems
Even with the above methods, you might encounter some common issues during the Kaspersky uninstall process. Here are some troubleshooting tips:
* **”Access Denied” Errors:** This usually means that Kaspersky processes are still running. Make sure you’ve completely closed Kaspersky and stopped all related services before attempting to uninstall. Running the uninstall tool in Safe Mode can also help.
* **”Cannot Uninstall Because Program is in Use” Error:** Similar to the “Access Denied” error, this indicates that Kaspersky processes are still running. Use Task Manager (Windows) or Activity Monitor (macOS) to identify and close any Kaspersky-related processes.
* **Uninstall Fails to Complete:** This can be caused by corrupted installation files or registry entries. Try running the Kaspersky Removal Tool (kavremover) in Safe Mode. If that doesn’t work, you may need to try manually removing the files and registry entries (Method 3), but proceed with extreme caution.
* **Kaspersky Still Appears in the System Tray:** Even after uninstalling, the Kaspersky icon may still appear in the system tray. This is usually a temporary issue. Restart your computer to resolve it.
* **Problems Reinstalling Kaspersky:** If you’re having trouble reinstalling Kaspersky after uninstalling it, make sure you’ve completely removed all traces of the previous installation. Use the Kaspersky Removal Tool (kavremover) to ensure a clean removal.
* **License Key Issues:** If you’re having trouble activating Kaspersky after reinstalling it, make sure you’re using the correct license key or activation code. Contact Kaspersky support if you need assistance.
Before You Begin: Back Up Your System!
Before undertaking any major system changes, including uninstalling antivirus software, it’s always prudent to create a system backup. This safeguards your data in case anything unexpected occurs during the process. Consider using Windows System Restore to create a restore point before uninstalling Kaspersky. On macOS, Time Machine is an excellent tool for backing up your entire system.
Conclusion
Completely uninstalling Kaspersky requires a multi-faceted approach. Start with the standard Windows or macOS uninstall feature. If that doesn’t completely remove the program, use the Kaspersky Removal Tool (kavremover), which is the most recommended and safest method. As a last resort for advanced users, manual removal can be attempted with extreme caution. Third-party uninstaller software offers a middle ground, providing a more thorough removal than the standard uninstaller but with less risk than manual removal. Remember to always back up your system before making any significant changes and to restart your computer after uninstalling Kaspersky to ensure a clean removal.