Fix An unexpected network error occurred 0x8007003B:

The cause of Windows Error 0x8007003b:
Virus or malware infection is a common cause of this error.
Conflicting Antivirus program or interference by Firewall.
Bad sectors in the Drive which you are tying to copy.
A recent software or hardware change to system may have interfered with the system
File system format of the drive may be set to FAT32.
Misconfigured network connection or server.

There is no defined method to fix the error 0x8007003b because there can be any different combination of causes which are causing this error. So try all the below-listed method and there is no guarantee that if something works for other may also work for you because it depends upon PC to PC. Therefore, you may need to try out several methods before you will be able to finally “Fix An unexpected network error occurred 0x8007003B.

Download and install CCleaner: https://www.piriform.com/ccleaner

Download and install Malwarebytes: https://www.malwarebytes.com/

To Run File Check Utility (SFC) and Check Disk (CHKDSK) type the following in the cmd and hit enter:

Sfc /scannow
sfc /scannow /offbootdir=c:// /offwindir=c://windows

Run CHKDSK from here: http://troubleshooter.xyz/how-to-fix-file-system-errors-with-check-disk-utility-chkdsk/

Perform System Restore: http://troubleshooter.xyz/how-to-backup-and-restore-the-registry-on-windows/

For more: http://troubleshooter.xyz/wiki/fix-an-unexpected-network-error-occurred-0x8007003b/

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