Issue with any printer driver on 2008 R2

Question

I have this issue, which is rather strange.
It all started when suddenly a few computers on our domain couldn't see printers in the catalogue on our old win 2003 print server when they did a search, that issue stopped by it self, but none the less, it was there. Then a few weeks later, when any
given end user wanted to add any given printer via the catalogue search it wouldn't install the driver we've provided and that had worked for so long before that, and when the installer would do is to start looking on Windows update for the driver to use,
but it would fail.
Due to that we have a Windows 2008 R2 server enviroment on our domain I took this oppertunity to upgrade the print server and manually (for a temporarly use only) add the printers via their IP add. for te users that need to print daily, which
has been no problem at all with installing/getting to print/Work.
Now the really strange thing is that now that I have added the new domain print server 2008 R2 this issue withstands!? I can clearly see the list of printers in the catalogue that I made, but I still get the issue where the installation tries to get the
driver via Windows Update.
On the Network we use Xerox 7665 with a PCL rev 2.0 driver, HP 2015n, HP 2020, 2025n printer that use Universial PCL 5.2 driver (tried with 6.0 as well, same issue). HP 4700 that has its correct driver as well.
Can anyone here tell me where the issue might be at? Remember this big issue is that it cannot install any given printer on any given end user and it always tries to get the driver from Windows Update.
Also, end users have Windows 7 x86 and x64 versions installed. No XP, No Windows 8.
I hope someone here can help me, because my Google search gives me nothing... And normally Google and I are so good friends resolving issues ><

Answer 1

Seems like a common issue please try this. Please take a registry backup first.
This
is a very common error found in environments that use Windows 2003 32bit print servers , HP printers and 64Bit clients .
This problem may occur because of the following factors :
1 ) The dll Print Processor configured for your printer is not in the Client or Server drivers folder 2
) The Print Processor that the printer uses only installed the 32bit files and does not install the 64Bit version
Resolution:
Microsoft
has released a fix to try to solve this problem (
http://support.microsoft.com/kb/982728/pt-br ) , however even with this
fix applied already came across the problem then to solve just follow the steps below :
On the print server , open regedit and navigate to the folder ;