[Ccleaner installer has stopped working]

I have tried all these things. No disk errors. Not even the portable after being unzipped works.

I don't know what to do from here.

[Ccleaner installer has stopped working]

I am sending the screenshot of when I try to install Ccleaner.

When I try to run the portable version, Windows 7 asks me if I want to run the file. I then click on run. Then Windows 7 asks "Do you want to allow the following program to make changes to this computer. I click yes and nothing happens after that.

[Ccleaner installer has stopped working]

When AVG Tuneup showed that Ccleaner needed to be updated to the latest version, I clicked o.k.

The program did not install the latest version. If fact, the program disappeared altogether. Now when I try to install any of several versions, some several years old, I get the message that Ccleaner installer has stopped working. I tried disabling AVG, then installing Ccleaner to no avail. I also uninstalled AVG. It still says Ccleaner installer has stopped working. I tried the slim and portable with the same results.

I am my wits end on this.

I would appreciate any advice. I am using Windows 7. I have used Ccleaner for years with no issue until yesterday.

TIA