ERROR

An unexpected error occurred while unpacking files in ArcGIS Pro. Error code -6

Last Published: February 14, 2024

Error Message

When attempting to install ArcGIS Pro, the installation fails and the following error message is returned:

Error:
An unexpected error occurred while unpacking file(s). Error code: -6
Error code -6

The following is a non-exhaustive list of products that return the error message:

  • ArcGIS Pro
  • ArcGIS License Manager
  • ArcMap

Cause

  • The account installing the software does not have read and write permissions for the specified installation folder.
  • Windows firewall is preventing the installation.

Solution or Workaround

Note: 
The following workarounds may require a Windows administrative account.

Assign read and write permissions to the account installing ArcGIS Pro

  1. Right-click the installation destination folder and select Properties.
  2. In the <folder_name> Properties dialog box, select the Security tab.
  3. Under Group or user names, click Edit....
  4. In the Permission for <folder_name> dialog box, select the username or group performing the software installation.
  5. Under Permissions for <user_name>, uncheck the Read and Write check boxes in the Deny column.
  6. Click Apply.
  7. Click OK to close the Permissions for <user_name> and <folder_name> Properties dialog box.
Permissions and properties dialog boxes
Note:
Alternatively, create a new folder or select a different folder as the installation destination folder.

Temporarily disable Microsoft Defender Firewall

  1. Disable Microsoft Defender Firewall. Refer to Microsoft: Turn Microsoft Defender Firewall on or off for instructions.
  2. Proceed with installing the software.
  3. Enable Microsoft Defender Firewall. Refer to Microsoft: Turn Microsoft Defender Firewall on or off for instructions.

Article ID:000031880

Software:
  • ArcGIS Pro 3 1
  • ArcGIS Pro 3 0
  • ArcGIS Pro 3 2

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