Microsoft Outlook Error Code 0x80070021 [Fixed] (+1 8583265662 )

Encountering errors while working with Microsoft Outlook can disrupt productivity and cause frustration for users. One such common error is 0x80070021, which occurs when attempting to copy or backup the PST file associated with an email profile in Outlook. This error, accompanied by the message indicating file locking due to another process, can hinder users from managing their email data efficiently. In this comprehensive guide, we'll delve into understanding the error, its root causes, and provide effective solutions to resolve Microsoft Outlook Error Code 0x80070021 and ensure seamless email management.

Understanding Microsoft Outlook Error Code 0x80070021

Error code 0x80070021 in Microsoft Outlook arises when attempting to copy or backup the PST file, with the error message indicating file locking due to another process. This error typically manifests as follows:

“An unexpected error is keeping you from copying the file. If you continue to receive this error, you can use the error code to search for help with this problem.

Error 0x80070021: The process cannot access the file because another process has locked a portion of the file.”

The error prevents users from performing essential tasks such as copying or backing up their PST file due to file locking by either Outlook processes or other applications running on the system.

Reasons for Microsoft Outlook Error Code 0x80070021

Error code 0x80070021 in Microsoft Outlook can stem from various factors, including:

PST File is Locked: The error may occur when the PST file being accessed is locked by another application running in the background, such as antivirus software or unified messaging services like Skype for Business or Lync.

Hardware or Software Issues: Issues with the storage media housing the PST file, such as file system errors, or issues with critical Windows services, can lead to error code 0x80070021 and prevent file copying or backup operations.

Solutions to Resolve Microsoft Outlook Error Code 0x80070021

To troubleshoot and resolve Microsoft Outlook Error Code 0x80070021, users can implement the following solutions:

1. Check and Close All Outlook Processes:

  • Open Task Manager and close all Outlook and related processes.
  • Additionally, close applications like Lync and Skype for Business.
  • Temporarily disable antivirus software to ensure it's not interfering with file operations.

2. Disable Add-Ins:

  • Start Outlook in Safe Mode to disable add-ins.
  • Navigate to File > Options > Add-Ins and disable all add-ins.
  • Restart Outlook and attempt file copying or backup operations.

3. Perform Clean Boot:

  • Disable non-essential services and startup items using MSConfig.
  • Disable Microsoft Windows Search Indexer to prevent indexing-related file locking.
  • Restart the system and attempt file copying or backup operations.

4. Uninstall MS Office Communicator App:

  • Uninstall the MS Office Communicator app if listed in the system's programs and features.
  • Follow the uninstallation wizard and restart the system.
  • Attempt file copying or backup operations after uninstallation.

5. Boot Windows in Safe Mode:

  • Boot the system in Safe Mode to avoid interference from third-party applications.
  • Attempt file copying or backup operations in Safe Mode to circumvent error code 0x80070021.

6. Use PST Repair Tool:

  • If other methods fail, utilize a reliable Outlook PST repair tool like Stellar Repair for Outlook.
  • Scan and recover mail items from the PST file, saving them to a new PST file at a desired location.
  • Export recovered mail items directly to Office 365 or a live Exchange mailbox if needed.

Safety Tips for Microsoft Outlook Error Code 0x80070021

  • Regularly check and close background processes to prevent file locking issues.
  • Ensure antivirus software is not actively scanning PST files during file operations.
  • Maintain a healthy file system on storage media to avoid potential errors during file copying or backup operations.

Resolving Microsoft Outlook Error Code 0x80070021 requires a systematic approach and an understanding of underlying issues affecting file operations. By following the outlined solutions and safety tips, users can effectively troubleshoot file locking issues and ensure seamless management of their email data in Outlook.

For further assistance or inquiries, feel free to contact us at +1 8583265662.

With the right tools and strategies at your disposal, overcoming Microsoft Outlook Error Code 0x80070021 is achievable, ensuring uninterrupted email management and improved productivity. More Resources

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