- In some cases, the problem can be fixed by completely uninstalling the AVG application via Windows Control Panel, and installing a fresh copy downloaded from the Web. This will repair any broken files and ensure that the latest patches are installed.
- Some AVG products, including AVG Anti-Virus, offer an option on the advanced settings screen to delete all temporary files. In many instances, this will delete the partially downloaded CTF file and remove the error message. These files also can be deleted manually, but their location varies based on the version of Windows.
- Specific instructions for dealing with an invalid CTF file can be found on the help and support pages of the AVG website. The clean-up process will vary depending on the specific application and version of Windows being used.
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