I have no idea if this problem is related to Ccleaner, but throwing it out there. Seems like this slow down of All Programs started somewhat recently, but it could be that I've just now started paying attention since I don't use the All Programs that much. Here's what happens: Computer could have just started up or it could be in the middle of the day, I click Start and hover mouse over All Programs. All Programs list takes about ten full seconds to open, that's slow but the real slowness comes when I hover mouse over individual programs in the list. "Accessories" for example takes almost 30 seconds before finally populating, and every other program I hover mouse over takes a few seconds to open/populate. But once the initial slowness is done with, all subsequent openings of All Programs and individual items such as Accessories open instantly, lightening fast. And then suddenly in the middle of the day it reverts back to the extreme slowness. I have tried the options to fix such as regedit>HKEY Current User>Control Panel>Desktop>MenuShowDelay modified to value 100 from default 400. Also did My Computer>properties>Advanced>Performance/settings>unticked Fade or Slide Menus into view.
I'm also thinking that maybe one of the default Ccleaner options is causing Windows to clear out certain data or cache that causes the intermittant sluggishness for the All Programs list. Thank you for any advice.