Itunes 10.5.1 Completly not working in Win7 (64bit)

Well, I finally got around to working on this again. Created a new profile and itunes opened fine. I wanted to rebbuild my profile but I currently don't have enough spare space on my HD. I tried running as admin and that is working temporarily. I don't remember who suggested trying the new profile but thanks. I used to be a helpdesk tech and rebuilding profiles was always the first thing I tried when I ran out of all other probable causes. It's amazing how quickly we forget to try the simple stuff. I had sugested the problem was on Apple's end but that's not the case, at least for me. Good luck to those who are still stumped.

I removed the "Mozilla Plugins" folder that had been last updated about 2 weeks ago and now iTunes seems to be working much better...

Huckleberry - you are correct. Actually ment I'm NOW more convinced...

Amazing solution. It works for me. Anyone can explain why this is? I kept getting MSVCR80.dll error which crashes my iTunes upon startup before. Now, run as administrator solves it. I'm Win7 64-bit... Also, before all these crashes started happening, I had just installed McAfee Internet Security Suite, could that have been the problem?

mzblue99's advice got my iTunes back up and running. The key link http://support.apple.com/kb/ts1717 in that reply suggested that you start iTunes in safe mode first by holding down the Shift and Control keys when you launch iTunes. So that is what I did and found iTunes to run just like it had prior to the 10.5.1 update. So I followed the second link http://support.apple.com/kb/TS3430 to see how to disable third party plug ins that may not be compatible with the new version. When I looked in one of the two plug in locations, I found no third party plug ins. But when I checked /program files(x86)/iTunes/, I found the Mozilla Plugins folder that was referenced in another email. When I first deleted that folder, iTunes still locked up after launching. I figured I would try to just uninstall Firefox to see if by doing that it will properly remove the plugin folder.

I relaunched iTunes in normal mode and it works like a champ. Problem is that I now have to revert back to internet explorer until Firefox catches up with the plugin.

Hope this helps.

I had the same problem. Could not sync and system would crash/freeze.

My system: Win 7 Home Premium, 64-bit

Solution:

I uninstalled itunes, then re-installed it using the 64-bit version 10.5.1.

Before I launched itunes, I went to Program File(x86)/iTunes and deleted the Mozilla folder.

Then I launched iTunes. Everything works well now.

I'm having similar problems with Windows XP. Upgraded iTunes and now it crashes on startup.

I've tried uninstalling and doing a clean install - no joy.

I've tried creating a new user account - no joy.

I've tried removing all plug-ins - no joy.

Holding down shift and control to start it in safe mode - crashes before the safe mode message can appear.

Any further ideas?

Have now tried the System Wide Troubleshooting for Windows XP http://support.apple.com/kb/TS1421 - no joy.

I logged in to inform how I got itunes 10.5.1 working on my system after this crashing episode. As mentioned in earlier comments, I ran itunes in administrator mode in windows 7 64 bit and it worked like a charm. After that, I did not have use the administrator mode again. It just worked fine. Maybe Microsoft is sabotaging Itunes 😝. Kudos to billy_andika.

Have also just tried running iTunes as administrator from start menu and it's worked for me too - THANKS!

mzblue99 has it right. I tried every solution known to man with de-installing and re-installing everything. But once I created a new user profile and copied everything over, itunes works fine. Go figure !!

Keep in mind when you follow mzblue99's instructions and copy over your folders from your old profile, all those itunes files get copied over. So if you have a ton of video files such as tv shows and movies, this is going to be a multi-hour copy session. Further, it asks you many times during the copy process whether you want to copy/replace or skip a copy of certain files. So if you think you can walk away from it and come back in a couple hours and its done, afraid not. You'll have to check it frequently to see if its stopped to get your copy/replace permission for certain files.

Thanks mzblue !!

I had the exact same problem with 64-bit Vista. Was very frustrating. This is the link that fixed it for me:

http://support.apple.com/kb/TS1421

By creating a new user, I found out it was a user specific problem so I used those instructions. The very first thing they suggested to try fixed it!

I followed the instructions called: "Remove iTunes preference files"

Just blow away those two directories (or rename or move them if you want to be careful). Itunes will recreate them on startup. Something was broken in there but the recreated versions have been working fine. No more crashes!!

Just FYI, on Vista, the locations of those directories are different than the ones shown in the above link. On Vista they are in:

C:\Users\Lisa\AppData\Roaming\Apple Computer\iTunes

and

C:\Users\Lisa\AppData\Local\Apple Computer\iTunes

Again, just blow away those two iTunes directories and then restart itunes.

Hope this helps as I know how frustrating this problem was.

😠😠😠

Well, I have so far tried everything listed in this thread, as well as some tips from Microsoft and other websites. Nothing is working. I also am using 64-bit Win7.

Every stinking time I try to access the store, it hangs at mid bar for a moment then stops working completely. Windows Troubleshooter is telling me that Apple is aware and has a fix, suggesting that I update to the latest version. Funny thing is, I already have the latest version. But on a whim I tried anyway to no avail. This is frustrating as ****.

On 12/1 I had to wipe an HDD and start from scratch for seperate issues I was having. I am NOT doing it again just for iTunes.

BTW, other than the occasional error -39 while watching a rental at the same time it is downloading, iTunes was working fine in 32-bit Win7 on 11/30.

OK this utter nonsense, Everytime I go to access itunes store I get hung up mid-bar!!!! I've deleted the mozilla adins folder, I've unistalled and reinstalled, I've tried safe mode and NOTHING works. Anyone please tell me what I can do to fix this problem!!!!

try deleting/ renaming this file

C:\Documents and Settings\%username%\Application Data\Apple Computer\iTunes\iTunesPrefs.xml

seems to control some of the settings in itunes and was the problem for me