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How to Troubleshoot Kaspersky Anti-Virus Error Code 502

Kaspersky 502 error encounters because of corrupt download or incomplete installation of its anti-virus software. There is any issue with the Windows registry or your system is already under the influence of severe malware and infections, or there is already an anti-virus program running onyour computer, or some other application has meticulously removed Kaspersky anti-virus related files.

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Your system shows following symptoms if error 502 encounters:

  • It appears and crashes all the running applications
  • While installing Kaspersky program, it crashes the PC
  • Computer freezes periodically
  • It executes the inputs with a delay and responds significantly slow

This error may appear while installing a any software program while a Kaspersky Lab-related program is running, or during installation of the Windows operating system, or while Windows startup and shutdown. To troubleshoot the problem, it’ll be helpful if you track that when the error 502 encounters because it contains a crucial piece of information.

Please note that these instructions are applicable for Windows 10/8/7/Vista/XP/ME/2000

Below troubleshooting instructions are enlisted to resolve the issue. Progressively these steps become complex and time taking so it’s better to attempt them in ascending or in order to save your time and efforts.

Step 1: Repair Registry Entries Associated with Error 502

 It’s not safe to edit the Windows registry manually to remove invalid Error 502 keys unless you are an expert PC service professional. Because if you incorrectly edit your registry, your PC may stop functioning and bring irreversible damage to its operating system. It’s so sensitive that even one misplaced comma can prevent your computer from booting entirely.

So to ward off this risk, it’s better to use a trusted registry cleaner to scan and repair any Error or 502-related registry problems. Because such tools automates the process of finding invalid registry entries, broken links within the registry and missing file references. They create an automatic backup before performing scan function with the ability to undo any changes in a single click along with providing you the protection against the possible PC damage. Moreover, they also include the advantage of improving computer speed and performance.

If you want to continue with the manual process, the very first thing to do is create the backup by exporting a portion of the registry related to Error 502 (eg. Kaspersky Anti-Virus) then follow the instructions:

  1. Click the Start Menu icon.
  2. In the search box, type “command” and don’t press ENTER yet!
  3. While holding CTRL+Shift key on your keyboard, press ENTER.
  4. It’ll prompt a permission dialog box.
  5. Click Yes.
  6. Now a black box will open with a blinking cursor.
  7. Type “regedit” and press ENTER.
  8. Select the Error 502-related key (eg. Kaspersky Anti-Virus) that you want to back up in the Registry Editor.
  9. Select Export from the File menu.
  10. In the Save In list, choose the folder where you want to save the Kaspersky Anti-Virus backup key.
  11. Type a name for your backup file in the File Name box, such as “Kaspersky Anti-Virus Backup“.
  12. Make sure that “Selected branch” is selected in the Export Range box.
  13. Click Save.
  14. The file is now saved with a .reg file extension.
  15. Now you have created a backup of your Kaspersky Anti-Virus-related registry entry.

Step 2: Perform a Full Malware Scan of Your PC

It may be possible that your 502 error could be the aftermath of a malware infection on your PC. Because malicious programs, hackers and cyber intruders can damage, corrupt, or even delete Runtime Errors-related files.

Step 3: Clean Out the Junk Files from your System (Temporary Files and Folders)

Computer accumulates junk files from your normal web surfing habits and computer usage. These junk files cause the system to perform slow and run sluggishly so you need to clean out it occasionally because it not only fix kaspersky 502 error, but can also dramatically speed up the performance of your system.

Disk Cleanup (cleanmgr) is a Microsoft’s tool to remove junk entries from the system. Follow the steps written below to run Disk Cleanup (cleanmgr) (Windows XP, Vista, 7, 8, and 10):

  1. Click the Start Menu icon.
  2. In the search box, type “command” and don’t press ENTER yet!
  3. While holding CTRL+Shift key on your keyboard, press ENTER.
  4. It’ll prompt a permission dialog box.
  5. Click Yes.
  6. Now a black box will open with a blinking cursor.
  7. Type “cleanmgr” and press ENTER.
  8. Disk Cleanup will start calculating occupied disk space on your computer.
  9. The Disk Cleanup dialog box will show up with series of checkboxes from where you need to select the “Temporary Files” category in most of the cases because it occupies the most disk space.
  10. Also check the boxes of the categories that you want to clean and then click OK.

Step 4: Update the Device Drivers of Your Computer

502 errors can be related to outdated or corrupt device drivers. Drivers may stop working suddenly even if they were working fine yesterday and there may be different reasons of that. So updating the device driver can also solve the Error 502 problem.

Finding the exact driver for your Error 502-related hardware device may be extremely complicated and time consuming. But installing the wrong or an incompatible version of the right driver may make your issue even worse.

Although it is not obvious that your Error 502 is related to hardware driver problems, but it’s better to ensure that all of your PC device drivers are up-to-date to maximize PC performance and ward off the unusual issues.

Step 5: To “Undo” Recent System Changes, Utilize Windows System Restore

To offer you help for resolving the Error 502 problems, Windows System Restore allows you to “go back in time” with your PC. It may return your computer’s system files and programs back to a time when everything was working smooth. It may be helpful to avoid hours of troubleshooting headaches related with 502 errors. And also mind that using System Restore will not affect your documents, pictures, or other data.

To use System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Click the Start Menu icon.
  2. Type “System Restore” in the search box, and press ENTER.
  3. Click System Restore in the results.
  4. If prompted provide any administrator passwords.
  5. And further, follow the steps in the Wizard to select a restore point.
  6. Restore your computer.

Step 6: Uninstall and Reinstall the Kaspersky Anti-Virus Program Associated with Error 502

If error 502 is related to a specific program like reinstalling Kaspersky Anti-Virus-related software, uninstall the program installed earlier.

Instructions for Windows 8:

  1. To produce the Start Menu image, hover the cursor in the bottom left of the screen.
  2. Right-Click to open up the Start Context Menu.
  3. Click Programs and Features.
  4. Under the Name column, Locate Kaspersky Error 502 associated program (eg. Kaspersky Anti-Virus).
  5. Click on the Kaspersky Anti-Virus-associated entry.
  6. On the top menu ribbon, click the Uninstall/Change.
  7. To complete the uninstallation of your Error 502-associated program, follow the on-screen directions.

Instructions for Windows 7 and Windows Vista:

  1. Click the Start button and open Programs and Features.
  2. On the right side menu, click Control Panel.
  3. Click Programs.
  4. Click Programs and Features.
  5. Under the Name column, locate Kaspersky Error 502-associated program (eg. Kaspersky Anti-Virus).
  6. Click on the Kaspersky Anti-Virus-associated entry.
  7. On the top menu ribbon, click the Uninstall button.
  8. To complete the uninstallation of your Error 502-associated program, follow the on-screen directions.

Instructions for Windows XP:

  1. Click the Start button and open Programs and Features.
  2. Click Control Panel.
  3. Click Add or Remove Programs.
  4. Under the Name column, locate Kaspersky Error 502-associated program (eg. Kaspersky Anti-Virus).
  5. Click on the Kaspersky Anti-Virus-associated entry.
  6. On the right side, click the Remove button.
  7. To complete the uninstallation of your Error 502-associated program, follow the on-screen directions.

Now reinstall the program according to the Kaspersky Lab instructions after successfully uninstalling your Error 502-associated program (eg. Kaspersky Anti-Virus).

Step 7: Run Windows System File Checker (“sfc /scannow”)

Windows systems have System File Checker which is a handy tool which allows you scan for and restore corruptions in Windows system files (including those related to Error 502).

To run System File Checker (Windows XP, Vista, 7, 8, and 10):

  1. Click the Start button icon.
  2. In the search box, type “command” and don’t press ENTER yet!
  3. While holding CTRL+Shift key on your keyboard, press ENTER.
  4. It’ll prompt a permission dialog box.
  5. Click Yes.
  6. Now a black box will open with a blinking cursor.
  7. Type “sfc /scannow” and press ENTER.
  8. System File Checker will start scanning for Error 502 and other system file errors (the system scan may take a while so be patient).
  9. Follow the on-screen commands to complete the process.

Step 8: Install all Available Windows Updates

Microsoft keeps on updating and improving the Windows system files so installing all available updates may solve your issues associated with Error 502. Sometimes just doing so can be a tool to fix your Runtime Errors problems.

Follow the steps below to check for Windows Updates (Windows XP, Vista, 7, 8, and 10):

  1. Click the Start button icon.
  2. In the search box Type “update” and press ENTER.
  3. Now the Windows Update dialog box will appear.
  4. If updates are available, click the button Install Updates.

Step 9: Conduct a Clean Installation of Windows

Before conducting this step, remember that reinstalling Windows will be a very time-consuming. It’ll alter all the changes that you made and you may lose your data so take the backup to avoid such loose.

It’s the final step to solve the issue which will allow you to start again with a fresh system after cleaning out all junks that have been accumulated over the normal usage of your computer.

If 502 errors still persist after a clean install of Windows, it may be possible that there is some serious hardware issue in that case it is likely that you need to replace the associated hardware resulting the 502 error.