Issue

When FineReader PDF is started, the following error message appears: 
Internal program data are corrupted. Please reinstall the program or contact your system administrator. Error code: 258.

Cause

A conflict with CCleaner software settings.

Resolution

If a recent version of CCleaner software is installed on the computer, follow the steps below:

1. Launch CCleaner.
2. Click on Custom Clean.
3. Click on Configure at the top right corner.
   
4. Click on Files to ignore.
   

5. Choose Add file or folder and add the following program folders:

   1. C:\temp\FR16
   2. C:\ProgramData\ABBYY\FineReader\16
   3. C:\Users\%username%\AppData\Local\ABBYY\FineReader\16 
   4. C:\Users\%username%\AppData\Roaming\ABBYY\FineReader\16
   5. C:\Program Files\Common Files\ABBYY\FineReader\16
   6. C:\Program Files\ABBYY FineReader 16

   Note: The ProgramData and AppData folders may be hidden.

6. Go to Control Panel > Programs > Programs and Features.
7. Right-click FineReader PDF and select Modify > Repair.
8. Wait until the repair is completed.
9. Launch the program and check if the issue persists.

If an older version of CCleaner software is installed on the computer, follow the steps below:

1. Launch CCleaner.
2. Click on Registry.
3. Tick off ActiveX and Class Issues section to exclude it from scanning.
   Important: do not tick on this option in the future to not clean files which are used in FineReader.
4. Go to Control Panel > Programs > Programs and Features.
5. Right-click onto ABBYY FineReader, and select Modify > Repair.
6. Wait until the installation is completed.
7. Launch FineReader and check if the issue persists.

If CCleaner is not installed on the machine at all, follow the steps from the article.