Windows 10 versions 2004, 20H2, 21H1 and 21H2:

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Policies\Microsoft\FeatureManagement\Overrides /v 713073804 /t REG_DWORD /d 0 /f
 

Windows 10 version 1909:

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Policies\Microsoft\FeatureManagement\Overrides /v 1921033356 /t REG_DWORD /d 0 /f




Windows version 1809 and Windows Server 2019:

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Policies\Microsoft\FeatureManagement\Overrides /v 3598754956 /t REG_DWORD /d 0 /f
3. Restart your computer and check if the printing problem has been resolved.




Method 2. FIX Network Printing Error 0x0000007c by Modifying Registry (FIX No2).
Since after applying the latest Windows 10 updates, administrative credentials are required to install or print to shared printers, go ahead and add the following registry entries to your system: *

1. Open Command Prompt as Administrator
2. Give the following command in order (press Enter after each command):

reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint" /v RestrictDriverInstallationToAdministrators /t REG_DWORD /d 0 /f
reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint" /v UpdatePromptSettings /t REG_DWORD /d 0 /f
reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint" /v NoWarningNoElevationOnInstall /t REG_DWORD /d 0 /f
3. Restart your PC and try to print.

* Note: For Domain Computers (workstations), you have to modify the Domain Group Policy to allow the installation of shared printers without administrative credentials needed. To do that:

1. Open the Group Policy Management.
2. Right click on the Default Domain Policy and select Edit.
3. Navigate to: Computer Configuration > Policies > Administrative Templates > Printers > Point and Print Restrictions.
4. Set the Point and Print Restrictions policy to Disabled and click OK.
5. Close the Group Policy Editor and give this command to apply the change.

gpupdate /force
6. Now proceed and install the shared printer(s) on workstations.
7. After installation to keep your network secure, configure the Point and Print Restrictions policy as follows:

a. Set the Point and Print Restrictions Group Policy setting to Enabled.
b. Select Users can only point and print to these servers and type below the names of the print servers.
c. At When installing drivers for a new connection, select Show warning and elevation prompt.
d. At When updating drivers for an existing connection, select Show warning and elevation prompt.
e. Click OK and close the Group Policy Editor.
f. Run the "gpupdate /force" command to update the Domain Policy.



Method 3. FIX 0x0000007c Network Printing error by Removing KB5006670 & KB5007186 Updates.
If your shared printer is not responding when printing on it, or you cannot install a network printer with error 0000007c after installing KB5006670 or KB5007186, proceed and apply the following simple steps:

Uninstall the KB5007186 and/or KB5006670 updates.
Prevent KB5007186 & KB5006670 update to be installed again until Microsoft fixes the problem on a future update.
Step 1. Uninstall KB5006670 & KB5007186 from Windows 10:
1. Open Command Prompt as Administrator.
2. In command prompt give the following commands and press Enter:

wusa /uninstall /kb:55007186
wusa /uninstall /kb:5006670
3. Click Yes to remove the update.


4. When the uninstall process is complete, restart your PC.
5. After restart proceed to install your printer.

Step 2. Prevent KB5006670 Update Installation.
1. Download the Show or Hide updates tool "wushowhide.diagcab" tool from: https://www.majorgeeks.com/files/details/wushowhide.html
2. Run the tool,  click Next and then select Hide updates.