I have been using CCleaner successfully for a long time on an old PC with NT4 SP6. However, the latest version, v2.17.853, installs and initially runs ok, but gives a critical error upon selecting "Run Cleaner". Is this a known problem, and will there be a bug fix?
Mike, I don't believe NT4 SP6 is supported by Microsoft any longer. Therefore, the programming for CCleaner would likely not support unsupported operating systems. Check this link: http://support.microsoft.com/gp/lifewinfaq