Well... I put registry values back as they were - nothing happened i.e. iTunes was still not working - copied the text as requested from iTunes just as my son piped up (who was on his PC) as he'd found one of your earlier posts re a similar issue on a an early version of windows with a code 19 error where you advised them to do an iTunes repair - we followed this and nothing. However my lad decided to reboot the laptop after this... and hey presto driver appears to be working and as you can see from the test results below it passed the iTunes diagnostic test:
Microsoft Windows 7 x64 Home Premium Edition Service Pack 1 (Build 7601)
Packard Bell EasyNote TK85
iTunes 11.0.0.163
QuickTime not available
FairPlay 2.2.32
Apple Application Support 2.3.2
iPod Updater Library 10.0d2
CD Driver 2.2.3.0
CD Driver DLL 2.1.3.1
Apple Mobile Device 6.0.1.3
Apple Mobile Device Driver 1.62.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.6.502
Gracenote MusicID 1.9.6.115
Gracenote Submit 1.9.6.143
Gracenote DSP 1.9.6.45
iTunes Serial Number ------------------
Current user is not an administrator.
The current local date and time is 2012-11-30 20:57:57.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is supported.
Core Media is supported.
Video Display Information
Intel Corporation, Intel(R) HD Graphics
**** External Plug-ins Information ****
No external plug-ins installed.
Genius ID: 77e6d1056ec07c62b9cdf48e17f20860
iPodService 11.0.0.163 (x64) is currently running.
iTunesHelper 11.0.0.163 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
**** CD/DVD Drive Tests ****
No drivers in LowerFilters.
UpperFilters: GEARAspiWDM (2.2.3.0),
D: PIONEER DVD-RW DVRTD11RS, Rev 1.01
Audio CD in drive.
Found 15 songs on CD, playing time 57:10 on Audio CD.
Track 1, start time 00:02:00
Track 2, start time 02:10:74
Track 3, start time 05:09:65
Track 4, start time 08:53:65
Track 5, start time 11:58:50
Track 6, start time 15:12:07
Track 7, start time 18:58:73
Track 8, start time 24:21:49
Track 9, start time 27:28:23
Track 10, start time 31:13:44
Track 11, start time 35:51:31
Track 12, start time 39:31:31
Track 13, start time 43:17:47
Track 14, start time 46:48:01
Track 15, start time 53:38:23
Audio CD reading succeeded.
Get drive speed succeeded.
The drive CDR speeds are: 4.
The drive CDRW speeds are: 4.
The drive DVDR speeds are: 4.
The drive DVDRW speeds are: 4.
fingers crossed ???
<Edited by Host>
