After I installed CCleaner I started to get an error message stating " The operating system is not presently configured to run this application".
This prevents me from opening e-mail attachments as well as other programs.
Has CCleaner deleted any registry keys? How do I get that error off and my attachments back on?
Thank you,
Manny J. Perez
email removed to avoid spamming ~ moderator
Hi Manny, and welcome to the forum.
I'm sorry to hear of your problem.
Did you run the "Issuse" feature of CCleaner to clean the registry? I know you asked if CCleaner had deleted any registry keys, but can you confirm that you didn't just mean you ran the "Cleaning" feature?
If so, did you follow the CCleaner dialogue to make a registry backup before doing so?
If you did, you can merge the backup into the registry to replace what you removed.
If you cleaned the registry and didn't make a backup, have you tried a System Restore to a time before you ran CCleaner? If we can first of all get you back to where you were, we can then try and find out what exactly caused the problem.