I recently upgraded my Windows Vista Ultimate x64 machine to Windows 7 RC1 Build 7000 x64 and after doing so, whenever I connected my iPhone to my PC, it would charge, but would not be recognized. If I opened iTunes, I would receive the message:

"This iPhone cannot be used because the required software is not installed. Run the iTunes installer and remove iTunes, then install the 64-bit version of iTunes."

Mind you, I was running the 64-bit version if iTunes, and I did uninstall and re-install just to make sure -- no luck. Turns out there's a really easy solution, I'll spare you the detail of how I figured it out, but if you encounter the same issue, here's the solution:

1) Using WinRAR (or any other decent archiving program), extract iTunesWindows64Setup.exe
2) Right click on AppleMobileDeviceSupport64.msi and choose Properties.
3) Switch to the Compatibility tab and check the "Run this program in compatibility mode for:" box, and select your only option, "Previous versions of Windows", in the drop-down box.
4) Click OK
5) Double click the AppleMobileDeviceSupport64.msi
6) Tell it to Repair your current installation
7) Tada!

Now, I turned UAC entirely off (just like I did in Vista), for obvious reasons -- but I don't mention this because of my preference, just Windows's penchant for not running things as Administrator if you don't do that -- so if you're running with UAC turned on, make sure the .MSI runs as Administrator. I'm not certain it makes a difference, as frankly, the Windows Installer service is supposed to run under the Local System account anyways, but just in case -- that's how it worked for me.

After that I just opened iTunes, told it to Authorize the machine, ignored the error about the 2 applications that it didn't want to transfer to the machine, let it do a full Sync, then did another sync, and it was fine.

After ALL THAT -- I'm finally ready to upgrade from 3.0b4 to 3.0b5

Nick,

I'm getting the same error message when I try to plug in my ipod touch. The thing is I'm using Vista 64 bit. I extracted files but when I right click on the Mobile Device, there is no Compatibility tab. Any suggestions

Hrm. Personally, I never had any problems with the standard x64 installers in Windows Vista. If you haven't already, I would do a full uninstall of the iTunes software, reboot, then re-install. If that doesn't work, follow the instructions above and skip the step about setting the .msi to run in compatibility mode -- just run it and tell it to do a repair.

If all of that fails, check out this site -- it's the site that pointed me in all the right directions: Get iPod Touch/iPhone Working in Windows 7 x64 at Chris123NT’s Blog

I know it says for Windows 7 x64, but the steps he provides for manually forcing an install should work. If you need a compressed copy of the C:\Program Files (x86)\Common Files\Apple\ folder, check the comments of the aforementioned link, there's a rapidshare in there somewhere.

Good luck!

Thanks for the advice, I'll look into that other site. More trial and error with Apple+PC...cant we all just get along haha. Thanks again.

Just wanted to say that your solution fixed my problem!!

Support is always spotty when a new OS is released, but it's surprising that Apple hasn't addressed this issue by now, considering how long Win 7 was in beta.

Either way, I'm now happily connected to iTunes and doing a full backup - thanks!!

Windows Vista Ultimate 64 – Running iTunes v9 with iPhone 3gs -

My iPhone 3gs stopped synching after the recent iTunes upgrade was foisted on me.

When I plugged it into the USB port I got 3 rapid bass string sounds in succession. Not the usual device connected {lower} Dar {upper} Dum – anyway I digress.

Tried everything – system restore, latest Vista patches (that’s another story)
Searched the web high and low for around 2 days - no avail till I found this page.

Did what you said – opened up “iTunes64Setup.exe” with WinRAR (I really must register it) extracted “AppleMobileDeviceSupport64.msi” ran it – ta da!
Its working again.

As well as my iPod – which curiously enough never stopped working.
Prompted to authorise iTunes again – then to be told that the computer was already authorised

Then told yet again the apps that I have just purchase are not authorised – I’ll deal with that after this post.

I cannot thank you enough – Many, many thanks

Spookspear

Hi Nick,
I'm not very talented or knowledgable about extracting, etc. Any chance you can help me? I have Windows 7 64 bit and I get the iTunes error message that you described. I started by downloading winrar, but that's as far as I got. I opened winrar and tried finding the file that you mentioned but haven't been able to find it. If you can help, great, if not I understand. apsulliv@gmail.com is my email.

Thanks,
Aaron

No problem, it's pretty easy.

1) Download an archiving program like WinRAR (www.rarsoft.com) or 7zip and install.
2) Open the archiving program, and point it to the iTunes setup EXE
3) Highlight the msi listed above and click 'Extract'
4) Choose a directory to save the file and hit OK
5) After the msi extracts, close the archiving program
6) Locate the msi you just extracted and then follow the instructions above.

At this point the installer supports Windows 7 but just in case you still needed the help.

__________________
The preceding forum post has been brought to you by the letter "N" and the number 42.

iPad 3G, 16GB - 3.2, Spirited into JailBreak-Land, Cydia'd ftw.
iPhone 3GS, 32GB - 4.0, PwnageTooled, like a boss, Cydia 4eva!
iPhone 4, 32GB - 4.0, Jailed (let me out!)