The error code you provided, 0x00000660, translates to ERROR_INSTALL_TEMP_UNWRITABLE. This error message indicates that a program encountered a problem during installation because it couldn’t write to the temporary folder it uses.

Here’s a breakdown of the issue and troubleshooting steps to address the ERROR_INSTALL_TEMP_UNWRITABLE error:

Understanding Temporary Folders During Installation:

• During installation, programs often extract temporary files to a designated temporary folder on your system. These files are used for the installation process and are usually deleted afterward.

Why You See ERROR_INSTALL_TEMP_UNWRITABLE:

• The ERROR_INSTALL_TEMP_UNWRITABLE error occurs when the program cannot write to the temporary folder it’s trying to use for several reasons:

  • Insufficient Permissions: The program might lack the necessary permissions to write to the temporary folder location (often caused by User Account Control restrictions).
  • Full Disk: The disk drive where the temporary folder resides might be full, preventing the program from creating or writing temporary files.
  • Antivirus Interference: In rare cases, overly aggressive antivirus software might block the program’s access to the temporary folder, mistakenly identifying it as a security threat.
  • Corrupted Temporary Folder: The temporary folder itself might be corrupt or inaccessible due to system issues.

Troubleshooting Steps:

1. Run as Administrator (if applicable):

   • If you suspect a permission issue, try right-clicking on the program installer and selecting “Run as administrator” to provide elevated privileges during execution. This might grant the program the necessary permissions to write to the temporary folder.

2. Check Disk Space:

   • Ensure there’s enough free space available on the disk drive where the temporary folder is located. You can check disk space by opening File Explorer (or your preferred file manager) and right-clicking on the drive to view its properties.

3. Temporarily Disable Antivirus (at your own risk):

   • As a last resort, temporarily disable your antivirus software during the installation process. Be cautious, as this can leave your system vulnerable to malware if you don’t re-enable antivirus protection immediately after a successful installation.

4. Change Temporary Folder (if possible):

   • Some installers might allow you to specify the location of the temporary folder. If this option is available, try selecting a different location with sufficient permissions and disk space.

5. Clean Up Temporary Files:

   • Consider using the Disk Cleanup tool (search for it in the Start menu) to clean up temporary files on your system. This can free up space in the temporary folder and potentially resolve the issue.

6. Software Vendor Support:

   • If none of the above steps resolve the issue, consider reaching out to the software vendor’s support for further guidance. They might be aware of specific compatibility issues or offer alternative installation methods.

Additional Tips:

• Make sure your system meets the minimum requirements for the program you’re trying to install, as insufficient resources can also lead to installation failures.
• If you’re encountering this error with a program you’ve installed previously without problems, consider a system restore to a point before the error started occurring (if possible).

By understanding the reasons behind the ERROR_INSTALL_TEMP_UNWRITABLE error, you can identify the cause of the write failure to the temporary folder. Running the installer as administrator, checking disk space, and temporarily disabling antivirus are some initial steps. If the issue persists, consider contacting the software vendor’s support.