The Network error 0x8007003B occurs when we transfer a large file usually more than 100 Mb over VPN connection. The primary reason for occurrence of this error may be due to unstable server or mismatch of configuration. Normally this error is encountered in OS versions Windows 8 or higher. But it is better to fix this issue like any other error on your PC as it can slow down your system’s performance.
Make sure that your computer is free from viruses and malwares by executing a full antivirus scan. Moreover run CCleaner and Malwarebytes Anti-malware to ensure full protection.
Step 1: Download and setup CCleaner and Malwarebytes.
For your convenience I have already created a direct Downloading link for both these softwares.
Click here to Download CCleaner.
Click here to Download Malwarebytes.
Step 2: Run Malwarebytes first and let it scan for the corrupt malware files in your system. It will automatically delete them if found.
Step 3: Now execute the CCleaner and under the windows tab in the cleaner section, make sure that the following options are checked to be cleaned as shown below.
Step 4: Once you have checked with the options, Run Cleaner and let the CCleaner perform its operation.
Step 5: Now select the Registry tab and ensure the following options are check marked as shown below.
Step 6: Select the option “Scan for issue” and allow CCleaner to execute the Scan operation.
Step 7: When asked “Do you want backup changes to the Registry?” Select Yes.
Step 8: Select fix all selected issues when your backup process has been completed.
Restart your PC after you have done with the scanning process from CCleaner and Malwarebytes.
The antivirus programs can also be the cause of the Network Error 0x8007003B. All you need to do is turn off or disable the antivirus programs for a limited time and check if the error still occurs or not.
Step 1: From the system tray, right click on the Antivirus program and click on the “Disable Auto-Protect”.
Step 2: Select the time duration for which you want your Antivirus program to be disabled.
Step 3: Now, repeat the file copying process and check if the Network error 0x8007003B is resolved or not.
To know further How to detect and remove Malware completely from your PC, Click here
Sometimes Windows Firewall can also be the cause for the Network Error 0x8007003B which can interfere with the file transfer process.
Press the to open the Control panel.
Step 2: Now click on System and security.
Step 3: After that click on Windows Firewall as shown below.
Step 4: Click on Windows firewall turn off option as shown.
Restart your PC and see if the problem is resolved or not.
To know the permanent techniques of Disabling Firewall as well as other issue related to it, refer to our Complete Guide to Fix issues related to Firewall.
Step 1: Press the Windows Key + X to open Command Prompt (Admin).
Step 2: Now execute the following command and hit enter.
The above command will run a system scan. Wait for the scanning process to complete.
Step 3: Now, enter the command “CHKDSK”. It will examine your basic file system for errors and will fix it up automatically.
Step 4: Wait for the above process to complete and restart your PC to save changes.
Try copying the file again and see if the error is resolved or not.
If you are still not able to resolve the network error 0x8007003B then the only option left at last is to restore your system to an earlier point. This method will surely work and it will save your system settings to the last known good configuration. see our Complete Guide on System Restore for Windows .
Make sure that the drive is formatted with the NTFS (New File Technology System) while trying to copy the file. If it is formatted with the FAT32 then you will definitely get the network error 0x8007003B.
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