O.K.! I have downloaded, and saved each version of CCleaner from 1.3 straight on up through todays update of 2.01.507. I have never had a problem installing any of these programs, until today.
Today, I downloaded the file from FileHippo, clicked the launch, selected English, agreed to the terms, agreed to the options checked, agreed to the location for the program, and the installation immediately failed! I tried downloading from the alternate download site; same problem. I tried running the install from FileHippo and from the alternate (not saving the file first); same problem. The failure comes back as an immediate: Cannot write C:\Program Files\CCleaner\CCleaner.exe - Abort, Retry, Ignore? with a highlight around the abort. Hitting retry or ignore flashes the exact same message back on the screen again. Hitting abort shuts down the installer. I re-installed Version 2.00.500, and it works flawlessly....which is in itself a mystery because the newer version is supposed to be a fix for the older version.....?????
O.K., some background on this machine - this is my six year old daughter's laptop. PIII, 1.1Ghz, W2K Pro, all updates and patches and service packs applied; 512 MB, 40 GB C:, 300 GB D:, E: is a DVD ROM, F: is a DVD writer/RAM drive. According to Defraggler, there are about 20 files with 2 or 3 fragments each across the entire 340 GB of drive space (I use CCleaner and Defraggler all the time to keep this old dog up to speed for the reading, spelling, math, etc. my daughter does on it).
My machine is a custom built, dual P4 @ 3.3 Ghz; 4GB Ram, 3+ TB hard drive space in RAID 0+1 config, 3 DVD writer/RAM combinations, 2 Blu-Ray Reader/Writer, Win XP Pro. I am using version 2.00.500 of CCleaner on this one, and have yet to attempt to download the newer version, especially after these problems that I'm having on the "guinea pig" machine.
Any insight anyone might have would be greatly appreciated.
Thanks!
P.S. Other than this minor setback, I have found all three Piriform products to be excellent products, and have donated through PayPal after test-driving each of them.