THX ieee488,

I had seen that but was fearful of CHKDSK

I overcame that fear and it worked.

BTW, do you know the phone # for National Instruments?

It's

JIM

From the search results, the control panel is one of the most used method, and it really helped me fix iTunes can't uninstall. Very simple operation:
Click Start > Type Control Panel > Control Panel > Programs and Features > Find iTunes and Uninstall it > Uninstall these four sections:
'Apple Software Update'
'Apple Mobile Device Support'
'Bonjour'
'Apple Application Support'

I am an iPhone user for the last 3 years. I have been using iTunes for the last 3 years also. I never faced any error in my iTunes. But recently I was getting the uninstallation issue and then starting issue. When I researched I got that it was an iTunes sync error 54. Can anyone please tell me how to fix this error.

See, I have also faced the same issue with my iTunes. I found some error message on my iTunes. I reboot my windows 2-3 times but it didn't work. I tried to uninstall iTunes but I couldn't do that. Then I get some online reviews and found one website. From https://itunessupport.org/blog/how-to-restore-iphone-without-updating/ I got the proper solution.

Error when you  try to update itunes

it is interrupted & shows the error code 2330
What does the code mean and how can I fix it??

That code is consistent with disk/file damage.

Run a disk check (chkdsk) on your C drive.

XP instructions in the following document: How to perform disk error checking in Windows XP
http://support.microsoft.com/kb/315265

Vista instructions in the following document: Check your hard disk for errors
http://windows.microsoft.com/en-us/windows-vista/Check-your-hard-disk-for-errors

Windows 7 instructions in the following document: How to use CHKDSK (Check Disk)
Admin Command Prompt Method:

command prompt to perform a scan on a drive letter of your choice
by running "chkdsk x:" where x is your drive letter.
The manual scan options are:

/F Fixes errors on the disk.
/V On FAT/FAT32: Displays the full path and name of every file on the disk. On NTFS: Displays cleanup messages if any.
/R Locates bad sectors and recovers readable information (implies /F).
/L:size NTFS only: Changes the log file size to the specified number of kilobytes. If size is not specified, displays current size.
/X Forces the volume to dismount first if necessary. All opened handles to the volume would then be invalid (implies /F).
/I NTFS only: Performs a less vigorous check of index entries.
/C NTFS only: Skips checking of cycles within the folder structure.
/B NTFS only: Re-evaluates bad clusters on the volume (implies /R)

"CHKDSK x: /F /R" would perform a full scan (including bad sectors) and attempt to fix them.

Select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors,
or use chkdsk /r (depending on which way you decide to go about doing this).
You'll almost certainly have to schedule the chkdsk to run on startup.
The scan should take quite a while ... if it quits after a few minutes or seconds,
something's interfering with the scan.