When I try to open CCleaner, I get an error that reads, "The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log or se the command line sxstrace.exe tool for more detail. Can someone assist in “for Dummies” terms? I’m not very computer savvy.
Configuration errors in side-by -side can have a few different causes.
As the first, and simplest, attempt to fix the error I would reinstall CCleaner.
Download an installer from here: Download CCleaner builds | CCleaner Portable, Slim, and more
Double-click the downloaded file to reinstall CCleaner.
(There is no need to uninstall the current one first).
Leave ‘Run CCleaner’ ticked on the last page of the installer, CCleaner should open from there.
Close it and try reopening it to see if it will open normally now.
If it does then fix done.
If not then we can move on to trying more advanced things.