Similar problem here, with an additional problem.
Similar: a popup that says "iTunes cannot save these items to Library. There is not enough memory available. Download your purchases now." Taslmanager reveals that only 15% of 32 GB memory is used by only 99 running Windows 7 Professional processes. iTunes flakes and flops about with between 20,000 and 120,000 bytes (very unstable application, but well under a 2 GB on any single process.
Additional: user Library attack originating and ending in open iTunes Player. This attack occurs frequently, every 2 weeks to 2 months. The atack results the above popup, but also four more specific and significant attack features.
Currently we (Apple Support and I) are maintaining my Libvrary as ONLY Purchased AAC files.
1. The system data during attack indicates no problem with memory whatsoever. So we must assume the popup denoting memory failure is a component of attack. It must be clicked to be closed. When it is clsoed, The player display flickers, and significant changes ocur within the Library.
2. One or more files have their Purchased Date information removed.
3. Files with Purchased Date information removed are converted to a format not currently engaged in Preferences Import Settings. For example, we have set imports to AAC. The attacker has converted the effected file to Apple Lossless format.
4. iTunes Player bottom panel opens and natively requests user to confgure and access available downloads. From experience, there is nothing to download, but the machine (s) performing the attack are waiting for Apple login credentials. DIE wishing, suckers. No more!
Apple has been aware of this security leak for many months, and no iTunes Player update has addressed this security leak. Absolutely obvious that persons are gaining access to my Player and its music file contents. Apple is going nowhere, if not backwards, in finding and applying the fix. Or, is Apple happy with a current "FIX"?
Oh yes, frequent need here to repurchase songs stolen from Apple due to sloppy Apple security. I use my Apple Care contract to redownload what I have paid for, without cost. However, imagine all those victims without Apple Care! $cam, or what! How many files have you re[urchased this week, dear reader?
Would we not be even sadder to learn that Apple has not a CLUE what is going down with this blatant scam? Is that attack login (remember that configure and download panel popping open) already scamming a bogus purchase and download website, distributing our Apple content to countless users? Likely, or at the very least, possible.
These scenarios always bring out the dark side of human nature. Whose side are you on? A hiney clean Apple, or something devious, somewhere.