Windows Vista Home Premium 64 bit SP2
AMD Phenom 9750 Quad Core 2.4 GHz
8 GB RAM
ATI Radeon HD 4600 Series
iTunes Auto Reverts To v.11 Uninvited
A month ago I allowed iTunes to update form version 9.? to the latest version. Big mistake! Along with many thousands of users, I disliked version 11 and looked for information in Apple Forums to downgrade it back to a version I was familiar with. I followed the instructions which worked well at the first attempt and very soon had version 10.7 installed and running smoothly. Version 10.7 had the added bonus for me of a new feature which allowed the re-downloading of purchased music. I was able to replace quite a few tracks which had been lost in a previous transfer to a new computer. I was very happy.
Within a day or two my desktop shortcut to iTunes mysteriously disappeared and when I opened the program from elsewhere, it was iTunes v.11 which greeted me with its welcome page. I looked to Apple Forums again for advice and could not see anybody else who had experienced this problem. All the people who had performed the same downgrade were happily back using their favoured version.
I followed advice at this link http://support.apple.com/kb/HT1923
to completely remove iTunes and then re-installed version 10.7 again. It installed and ran perfectly, as before. Since then I have repeated this process several times and v. 10.7 simply will not stay resident for more than a day or two. Sometimes it disappears after a reboot ( once, I think during a slow shutdown) but more than once the change has taken place while the computer is running - one minute the shortcut is there ( for v.10.7) and the next minute it has disappeared and v.11 is back.
I thought that the answer might lie in Event Viewer ( not that understand most of the entries there) and I did find a reference in 'Application' for the same time as one of the reversions:
Windows Installer installed the product. Product Name: iTunes. Product Version: 188.8.131.52. Product Language: 1033. Installation success or error status: 0.
Does anybody know why this is happening?