Before taking the steps please cretae a restore point for safer side and do back of registry because we have to playing with registry entries.it will not harmful but do them for safer side.there is no warranty if is there any exceptional case.
How do i fix unable to install printer operation could not be completed.
1.Start your computer in safe mode with networking.
2.Delete all files and folder out of these two locations.
3.Open the registry .click Start,click Run,type REGEDIT then press ok.
4. Locate the following registry key.like HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environment\Windows NTx86.
There should only be the following two subkeys (Delete the rest),if you key will see any other subkey apart from these two keys then delete rest from them.
Only These subkeys should be there,delete rest of them(if you found any),Drivers,Print Processor.
5.Expand the Version-x subkeys,and the delete all printer driver entries.
6.Locate The following registry key:
You will be see a lot of subkey in place ,delete rest of them,because these only ones should be there Only These subkeys should be there,delete rest of them(if you found any)
BJ Language Monitor
PJL Language monitor
Standard TCP/IP Port
7.Check the print spooler service ,is it running or not.
8.click on start and then click on run and type here services.msc and press ok or hit the enter button.find print spooler service ,and then click start (if it stopped)
if the service can’t able to start,then you may have other issue,please do some printer spooler fix it which are easily available on Microsoft KB.
9.Please make sure printer spooler service has set as automatically mode.after made started the print spooler service ,restart the computer once.
10 Now try to install the printer with latest drivers.it’s has worked for me. i hope it would very helpful from you.