US Apple サポートコミュニティで不明なエラー(-1202)に関して、記述が見つかったので、報告します。
Error -9812 and -1202
Unknown error -1202
lrylvsmsc
I can't do anything in iTunes without getting the following message:
We could not complete you iTunes Store request. An unknown error occurred. (-1202) There was an error in the iTunes Store. Please try again later.
Can someone help me with this? I just downloaded and installed the latest version of iTunes; it didn't help.
Windows XP
This solved my question by jjjoooff on Apr 14, 2012 2:50 AM
FIXED!! I had this exact problem. I followed a couple of the other threads, I tried everything, latest version of iTunes, etc., etc....this fixed it. It has something do to with the root cirtificates on your PC. The Microsoft link below has a lot of information....just page down to "FIX IT" and it makes the changes for you. Restart computer, and the problem is FIXED!!
http://support.microsoft.com/kb/822798
プログラムや更新プログラムをインストールできない
http://support.microsoft.com/kb/822798
にある、Microsoft Fix it を使えば、解決できるようです。
#私の環境では、日本語表記となっています。
まだ、未解決な場合は、上記のサポートシートに従って、トラブルシューティングを実行して下さい。