Encountering the Windows System Error Code ERROR_87 can be frustrating. This error typically reads as "The parameter is incorrect" and can appear during a variety of tasks such as running commands, installing software, or updating drivers. Fortunately, with a little patience and the right approach, you can resolve this issue quickly.
In this comprehensive step-by-step guide, we’ll walk you through the most effective solutions in a simple, human-friendly manner—even if you’re not a tech expert.
What is Windows System Error Code ERROR_87?
Before diving into solutions, it helps to understand what ERROR_87 is. This error means that one or more parameters passed to a system API or command are invalid or incorrect. In practical terms, Windows is rejecting your command or request because it doesn’t understand or accept the input provided.
Common Scenarios Leading to ERROR_87
- Running commands in Command Prompt or PowerShell with wrong syntax
- Issues with device drivers or hardware configuration
- Problems with Windows Update or system files
- Software incompatibility or corrupted files
How to Fix ERROR_87: Step-by-Step Guide
Step 1: Carefully Recheck the Command or Settings You’re Using
ERROR_87 often occurs due to typos or incorrect command syntax. If you ran a command and received this error:
- Double-check spelling and command parameters.
- Refer to the official Microsoft documentation or trusted sources to confirm the correct usage.
Example: If you typed netsh wlan show profile name=HomeWifi, ensure there are no spaces or extra characters missing.
Step 2: Run Command Prompt or PowerShell as Administrator
Some commands require elevated permissions. Running without admin rights might cause errors.
How to run as administrator:
- Press Windows key + S then type cmd or PowerShell.
- Right-click the app and select Run as administrator.
- Retry your command and see if ERROR_87 persists.
Step 3: Check for and Repair Corrupted System Files
Corrupted system files can cause commands or processes to fail.
Run System File Checker (SFC):
- Open Command Prompt as administrator.
- Type
sfc /scannowand press Enter. - Wait for the scan to complete. This process repairs corrupted files automatically.
- Restart your computer and try your command again.
Step 4: Update or Reinstall Device Drivers
If ERROR_87 happens after installing new hardware or drivers, they might be incompatible or corrupt.
To update drivers:
- Press Windows key + X and select Device Manager.
- Find the device related to your issue.
- Right-click and choose Update driver.
- Select Search automatically for updated driver software.
- Restart your PC.
If updating doesn’t help, uninstall and reinstall the driver:
- In Device Manager, right-click the device and select Uninstall device.
- Restart your PC. Windows will attempt to reinstall the driver.
Step 5: Reset the Network Settings (If Applicable)
Sometimes ERROR_87 happens during network or Wi-Fi commands.
Reset network settings:
- Open Command Prompt as administrator.
-
Type these commands one by one, pressing Enter after each:
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns - Restart your computer.
- Try your network command again.
Step 6: Use the Windows Update Troubleshooter
If ERROR_87 appears during updates, this integrated tool can help.
How to access:
- Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters.
- Select Windows Update then click Run the troubleshooter.
- Follow on-screen instructions and apply fixes.
- Restart your computer.
Step 7: Clean Boot Your System
Background software conflicts can cause system errors.
Perform a clean boot:
- Press Windows + R, type
msconfig, and hit Enter. - Go to the Services tab.
- Check Hide all Microsoft services.
- Click Disable all.
- Go to the Startup tab and open Task Manager.
- Disable all startup items.
- Close Task Manager and click OK in System Configuration.
- Restart your computer.
Try your command again. If the error disappears, re-enable services and startup items one-by-one to find the culprit.
Step 8: Restore Your System to a Previous State
If ERROR_87 started recently after changes, System Restore can undo those changes.
How to use System Restore:
- Press Windows + S and type Create a restore point.
- Click System Restore.
- Choose a restore point dated before the error appeared.
- Follow prompts to restore your system.
- Restart the PC and check if the problem is resolved.
Final Thoughts
Windows System Error Code ERROR_87 usually boils down to an incorrect parameter or corrupted configuration. By methodically following these steps, you can confidently fix the issue without stress.
Remember, technology errors are perfectly normal — even experts encounter them. Approach the fixes patiently and don’t hesitate to seek help if needed. Your computer is there to work for you, not the other way around!
FAQs About ERROR_87
Q1: Can ERROR_87 cause data loss?
Generally, no. It usually affects commands or specific operations. However, always backup important data regularly.
Q2: Is ERROR_87 related to hardware failure?
Sometimes, but usually it’s software or driver related.
Q3: Can I fix ERROR_87 just by restarting my PC?
Restarting can resolve temporary glitches but not underlying causes. Use the steps above for long-term fixes.
If you found this guide helpful, share it to help others fix their Windows errors easily! For more tech tips and troubleshooting advice, stay tuned.
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