[CCleaner won't install on my Windows7]

UPDATE: Please disregard my last post. I went to the download link you posted, Nergal, and it installed just fine. For some reason the link my old (last) version of CCleaner was sending me to update didn't work, yours did. Thank You.

[CCleaner won't install on my Windows7]

I am also experiencing problems upgrading to v4.18.4844 with my Windows 7 Pro machine. I have a notebook running 8.1 and two other DELL PCs running XP Pro, all three of these machines installed & run the latest version of CCleaner with the Active Monitoring with no issues. When I try to update to the latest version with my DELL Dimension E520 running 7 Pro the installer hangs up at installing the .exe file every time. I've had no issues updating with 7 Pro until this version.