Print Migrator Error ‘WARNING: Kernel Mode drivers (version 2) are blocked on the target machine’

KB ID 0000811 Dtd 07/05/13

Problem

I really like Print Migrator, it makes a time consuming laborious task really easy. It's so good Microsoft don't use/support it any more, (after Server 2003). So this week when I was migrating printers from an SBS 2003 server to a clients 2003 CRM server, I was really happy, and dragged out PrintMig.

Download Print Migrator 3.1

However when trying to restore the printers on the target server this popped up;

Printmig - WARNING: Kernel Mode drivers

Kernel Drivers Blocked Warning: Kernel Mode Drivers (version 2) are blocked on the target machine. Disable Kernel Mode driver blocking and re-run Printer Migrator. Ignoring this warning (Cancel button) will result in driver installation, but because they are kernel mode drivers - a serious problem with any dependent print queue could potentially bring down the system. Selecting OK will result in a restore termination.

Solution

Option 1 via GPO

1. A quick internet search told me to disable the policy within the servers local policy, but Computer Configuration > Administrative Templates > Printers didn’t exist, so I did it in the default domain policy.

Computer Configuration > Administrative Templates > Printers >
Disallow installation of printers using kernel-mode drivers

Set the policy to Disabled > Apply > OK > Close the policy editor.

Disallow installation of printers using kernel-mode drivers

2. Now on the target server run the following command and try again;

gpupdate /force

Option 2 via the Registry

1. On the Target server > Start > Run >Regedit {Enter} > Navigate to;

HKEY_LOCAL_MACHINE > SOFTWARE > Policies > Microsoft > windows NT

If there is no sub-key called Printers > Create one.

Printers Policy Regedit

2. Within the Printers Key create a new DWORD called KMPrintersAreBlocked and set its value to 1.

KMPrintersAreBlocked

3. Run the PrintMig restore process again.

Related Articles, References, Credits, or External Links

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Author: Migrated

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