How to fix iTunes 11.1.4 for Windows when crashing after installation?

Some Windows customers may experience installation issues while trying to install or open iTunes 11.1.4 for Windows.

Symptoms include:
-"The program can't start because MSVCR80.dll is missing from your computer"
- "iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”
- "Runtime Error: R6034 - An application has made an attempt to load the C runtime library incorrectly"
- "Entry point not found: videoTracks@QTMovie@@QBE?AV?$Vector@V?$RefPtr@VQTTrack@@@***@@$0A@VCrashOnOverf low@@***@@XZ could not be located in the dynamic link library C:\Program Files(x86)\Common Files\Apple\Apple Application Support\WebKit.dll”

These behaviors can occur if the iTunes installer has insufficient privileges to cleanly update iTunes. To resolve the issue, remove iTunes thoroughly, and then give the iTunes installer administrator privileges.

Follow these steps to resolve the issue:

1. Remove iTunes and related components from the Control Panel
Use the Control Panel to uninstall iTunes and related software components in the following order. 

1. iTunes
2. Apple Software Update
3. Apple Mobile Device Support
4. Bonjour 
5. Apple Application Support (iTunes 9 or later)

Then, restart your computer.
Important: Uninstalling these components in a different order, or only uninstalling some of these components, may have unintended affects.

If you encounter an error while uninstalling, try repairing the affected component:
1. In Add/Remove Programs (Windows XP) or Programs and Features (Vista and later), select the component and look for either Change or Repair.
2. Click and follow the wizard to repair the affected component.
3. Remove the affected component after repair.

2. Verify iTunes and related components are completely uninstalled
In most cases, removing iTunes and its related components from the Control Panel will remove all supporting files belonging to those programs. To fully resolve these issues, manually remove any remaining iTunes-related folders listed below.

On 32-bit and 64-bit systems:

• C:\Program Files\Bonjour
• C:\Program Files\Common Files\Apple\Mobile Device Support
• C:\Program Files\Common Files\Apple\Apple Application Support
• C:\Program Files\Common Files\Apple\CoreFP
• C:\Program Files\iTunes\
• C:\Program Files\iPod\

On 64-bit systems:

• C:\Program Files (x86)\Bonjour
• C:\Program Files (x86)\Common Files\Apple\Apple Application Support
• C:\Program Files (x86)\Common Files\Apple\Mobile Device Support
• C:\Program Files (x86)\Common Files\Apple\CoreFP
• C:\Program Files (x86)\iTunes\
• C:\Program Files (x86)\iPod\     

Follow the additional steps at the end of this article if you receive the alert "Cannot delete iPodService.exe: It is being used by another person or program" when trying to delete this folder. Some of the folders above may not be found on all systems.

iPodService.exe Alert:

Follow these steps if the message "Cannot delete iPodService.exe: It is being used by another person or program" appears when you try to delete the iPod folder.

1. Make sure that iTunes and the iPod Updater utility aren't open.
2. Press and hold Control-Alt-Delete.
3. Select Start Task Manager.
4. Click the Processes tab.
5. Locate the iPodService.exe in the list.
6. Click iPodService.exe and choose End Process.
7. Quit the Task Manager.

3. Reboot your computer.

4. Download the iTunes installer. When prompted to select what you want to do, choose to save it to your computer.

5. Install iTunes.

• Right click on iTunesSetup or iTunes64Setup.
• Windows Vista, Windows 7, and Windows 8: Select the 'Run as administrator' option.
• Windows XP: Select the Open option.

• Finish installing iTunes.