iTunes fails to perform requested task followed by error 127:
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iTunes was not installed correctly, Please reinstall iTunes. Error 7 (Windows Error 127)
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“Entry Not Found” followed by iTunes Error 7 (Windows Error 127)
Reinstall iTunes program from scratch, delete incorrect Registry references, reregister application DLLs, determine required application privileges.
Download Diagnostic
You’re just 3 steps away from fixing this problem…
1. Download and install the Diagnostic
2. Run full scan
3. Perform system clean-up & repair
Estimated download time: 10 Seconds
Reinstall iTunes
Gather list of all installed programs and then reinstall iTunes.
For Windows 10/ 8.1/ 8:
- Press Windows Key + X, select Programs and Features.
- It shows up a list of installed programs.
- Uninstall the following programs. To do so, right-click a program and select Uninstall option.
- Apple Application Support
- Apple Mobile Device Support
- Apple Software Update
- Bonjour
- iTunes
- QuickTime
- Restart your computer after successful completion.
- Double click Computer icon.
- Delete following folders:
- C:\Program Files\Bonjour
- C:\Program Files\Common Files\Apple
- C:\Program Files\iPod
- C:\Program Files\iTunes
- C:\Program Files\QuickTime
- C:\Windows\System32\QuickTime
- C:\Windows\System32\QuickTimeVR
- Download iTunes Download Page and get the latest version available.
For Windows 7:
- Click Start, select Control Panel.
- Click Programs | Uninstall a program.
- Refer Steps # 2-5 under Windows 10/ 8.1/ 8 user’s section.
For Windows Vista:
- Click Start, select Control Panel.
- Click Programs | Programs and Features | Uninstall a program.
- Refer Steps # 2-5 under Windows 10/ 8.1/ 8 user’s section.
Delete Missing Registry References
Use the Registry Editor tool to delete misconfigured Registry entries.
For Windows 10/ 8.1/ 8/ 7/ Vista:
- Press Windows Key + R simultaneously.
- It opens up Run dialog. Type “RegEdit” and click OK.
- Locate the following subkey:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls
- Delete following string:
- C:\Program Files\iPod\Bin\iPodService.exe
- Exit out of the screen and restart your PC.
Reregister QTMovieWin.dll File
Check for DLL Registry problems and re-register DLL references in the Registry.
For Windows 10/ 8.1/ 8:
- Press Windows Key + X, select Command Prompt (Admin).
- In the screen that opens, type following commands:
- regsvr32 -u QTMovieWin.dll
- regsvr32 QTMovieWin.dll
- Exit
- Restart your computer.
For Windows 7/ Vista:
- Click Start, point to All Programs | Accessories.
- Right click Command Prompt, select Run as administrator.
- Refer Steps # 2-3 under Windows 10/ 8.1/ 8 user’s section.
Run iTunes as Administrator
Inadequate system privileges cause iTunes error code 127. Re-run the program as administrator.
For Windows 10/ 8.1/ 8/ 7/ Vista:
- Right click iTunes desktop shortcut.
- Select Properties from context menu options.
- It opens up the Shortcut Properties dialog box.
- Click Compatibility tab.
- Check-up the box labeled “Run this program as an administrator.”
- Click Apply | OK.
Verify Folder Permissions
Provide full control to iTunes installation folder.
For Windows 10/ 8.1/ 8/ 7/ Vista:
- Double click This PC or Computer or My Computer icon.
- Open the target directory that contains installation folder. Examples: C:\Program Files (x86) or C:\Program Files
- Right click the subfolder that you selected for installation, say iTunes, and select Properties.
- Click Security tab in Folder Properties dialog.
- Click Edit button.
- Set “Full control” to the selected folder. To do so, check-up “Full control” checkbox under “Allow” column.
- Click OK | OK.
Disable Antivirus
Temporarily disable your Antivirus program as shown below:
For Windows 10/ 8.1/ 8/ 7/ Vista:
- Right-click the system tray icon of your Antivirus.
- Select Disable Protection and then confirm it in the subsequent confirmation prompt.