INSTALLING CLEANER GIVES ERROR MESSAGE

I have been using cleaner for years. The most recent download I have is v.300.1303. Now when I download the new version from Piriform and install I get an error message, which says "error opening file for writing"

I use windows vista and firefox 4.0 Beta7

I have never had this problem before with any of Piriform products.

Can you check that the ccleaner you have installed is closed while you are trying to install the new one.

Can you check that the ccleaner you have installed is closed while you are trying to install the new one.

Yes, remember this is not the first time I have upgraded the cleaner.

Could be a problem with the FireFox beta version. Try downloading and installing with Internet Explorer once.

Could be a problem with the FireFox beta version. Try downloading and installing with Internet Explorer once.

NO COULD NOT BE, AS THEY STATE ON THE PIRIFORM SITE THE PROGRAM IS FIREFOX BETA COMPATIBLE.

I THINK THE PROBLEM IS WITH THE PROGRAM, AND THE PROGRAMER.

A MISTAKE SOME WHERE.

NO COULD NOT BE, AS THEY STATE ON THE PIRIFORM SITE THE PROGRAM IS FIREFOX BETA COMPATIBLE.

I THINK THE PROBLEM IS WITH THE PROGRAM, AND THE PROGRAMER.

A MISTAKE SOME WHERE.

Please don't shout, there's no reason for it. the program is firefox beta compatible, this has ABSOLUTLY nothing to do with the downloading of the installer

The issue you are having is either with the product downloading (firefox beta or perhaps some addon you use) or your vista setup (are you accepting the UAC prompt?)

Are you downloading from File Hippo or directly from Piriform?

Will you please post a screen shot of the error that you are receiving?

I had no issue downloading the latest CCleaner (with firefox 4 beta7), nor starting the installer, nor in any part of the installer and finally ccleaner ran and cleaned perfectly.