In the case the current official version of jv16 PowerTools displays an error message and does not run in your computer, you can try this private test build:
(version no longer available for download, as a newer version has already been officially released).
If you do try it, please let me know here if any feedback. If this version also displays an error message, please create a zip file of the Backups folder created by the program (by default it is at C:\Program files (x86)\jv16 PowerTools\Backups\) and send it for me for analysis.
This version is a private test build, offered for you here for testing purposes. Please do not re-upload this version anywhere or re-post it anywhere.
As this is a private test build, it should be installed with the "Automatic updates" feature disabled, otherwise the software may automatically update itself to the official latest version.
Here is the Change Log compared to 4.2.0.1920:
Fix: The software can fail to start after installation and display an error message about not being able to create a directory.
Fix: The software can display an "Stack Overflow" or "Access Violation" message during Initial Setup or Clean and SpeedUp My Computer scan, which makes it impossible to use the software.
Improvement: The Initial Setup will now run up to 80% faster.
Improvement: Improved compatibility with jv16 PowerTools and Dragon NaturallySpeaking, Corel WordPerfect and Adobe Acrobat Reader.
Improvement: The software will now start faster.
An official release will follow later in this month. Thank you!