[CCleaner Extremely Slow to Open]

Curious.. what version of Windows are you running?

Windows XP, SP3.

[CCleaner Extremely Slow to Open]

Are you using the winapp2.ini file (as cookie asked?)

No, I'm not using a winapp2.ini file. When the slowdown happens, my hard drive activity goes way up, so it looks to me like it may be doing a full rebuild of the application information it needs to proceed.

[CCleaner Extremely Slow to Open]

While it's great that you seem to have used the search function before posting, your issue should really be opened in a new thread.

I chose to post on this thread because the poster just prior to me had an identical issue and program version within a couple of weeks which had not yet been satisfactorily resolved.

[CCleaner Extremely Slow to Open]

Also slow loading several minutes. It's not consistent, though. Another symptom is that I get a "busy" symbol when I mouseover the section of the program that lists Windows and Applications. v3.05.1409.