HT4913 iTunes locks up after I add the computer to Match

Question

iTunes locks up after I add the computer to Match.  I have to End the Process from the Task Manager.  When I reopen, it says Match encountered an error and I should Sign out and sign back in again.  I have done this numerous times and no luck.  I have run a repair from the Programs screen.  I have uninstalled and reinstalled iTunes.  This is a new computer runing Windows 7.

Answer 1

I had the EXACT same problem. My 60GB video iPOD was stolen, so I went and bought a new 80GB. I plugged it in, and BAM, iTunes is frozen!
I fixed it. I'm not going to say that this is the best way to do it, but it worked, so, use this solution at your own risk, I hope it helps some people out.
1. I did a file search of my entire computer for "itunes" and it came up with 292 results! Everytime I had downloaded it, copied it, transferred info from 1 computer to another, another copy was made. I don't know for sure, but I believe there was a conflict between 1 or more copies of iTunes, and it didn't know which program file to use, so it just locked up.
2. I copied all of the music that was in my "iTunes music folder" in My Music for a back up and named it something that didn't contain "iTunes", since anything you downloaded from the iTunes store can only be downloaded once.
3. I followed the file path for EVERY file that had anything to do with iTunes, and manually put it in the recycle bin- I mean program files, short cuts, everything. The exception is (& I stress this) the copy of your iTunes folder you just made has your podcasts, etc which will show up in your search. Make sure you recognize this and DO NOT delete those files. I also deleted anything that had to do with the previous iPOD. There are a few of them. That resolved any conflict I had with the previous one.
4. I then emptied the recycle bin & restarted the computer.
5. Go to Apple.com and download the new iTunes.
When I opened it up, it showed NO music, as it should. I went to "Import folder", found the folder that I copied from the iTunes music folder and clicked ok. 3 1/2 hrs later, I was transferring 8889 songs, videos, podcasts & movies to my new iPOD.
Think about each step as you do it, so you don't jack it up but it worked for me. Hope it does for you too.