Unable to fully sync with iPod Touch 1G and the (new/lat)est iTunes versions in a very old Windows XP Pro SP3 machine?

Question

Hi.
I keep getting this "The iPod '...' cannot be synced. The disk is locked and cannot be written to." error when I try to sync my 11 GB of music from my very old, updated Windows XP Pro SP3 machine to an old iPod Touch 1G (iOS v3.1.3). It has a brand new (lat/new)est iTunes installations too. I tried rebooting the the machine, disconnecting USB cables, etc. None of them helped. I did not have this problem in the end of 2013.
"Attempting to copy to the disk '...' failed. The device timed out."
"The iPod '...' cannot be synched. An internal device error occurred."
Sometimes Windows XP Pro SP3 thinks my USB connection is not fast? Huh?
No problems when I synched almost 8 GB of music to an iPod Nano 6G from the same machine and USB connector and port. Same collection, and random songs.
I tried again on a borrowed old 15" MacBook Pro (mid-2008) with Mac OS X 10.5.8 and iTunes v10.6.3. Synced from its local HDD to it without any problems.
So, I had an idea. I retried with iTunes v11.1.3.8, that I used end of 2013, in the same Windows XP Pro SP3 machine from scratch. It worked like the end of last year! No errors! Wow! :O
OK, so what changed in iTunes after its v11.1.3.8 to cause this problem?
Thank you in advance.

Answer 1

b noir wrote:
With those symptoms, I'd try the following document:
Apple software on Windows: May see performance issues and blank iTunes Store
(If there's a SpeedBit LSP showing up in Autoruns, it's usually best to just uninstall your SpeedBit Video Accelerator.)
I only see mdnsDSP from Apple in my WinSock Provider tabs in AutoRuns v11.70. I do remember I had a low memory error during a very long synchronization, but that only happened once. I doubt that is related to creating a new account especially after I rebooted my very old Windows XP Pro. SP3 machine.