CCleaner64.exe hangs on startup (Windows 7)

I can see it executing in Task Manager, but it just sits there. The UI never comes up.

This has happened ever since I installed ccsetup501.exe

Ditto ccsetup 500

I backed out to 415 and it launches a window that says "Intelligent Cookie Scan/Detecting Cookies".... and then hangs

V3.28 runs, but the "RUN CLEANER" is gray and never comes alive (when you mouseover the "Windows" tab it just spins

Environment:

AVG

Windows 7

Have you uninstalled all previous versions of CCleaner first?

Also are you installing CCleaner in the English language?

I'm having a similiar issue.

ccleaner64 v 5.00.5050 works fine

Downloaded and tried to install 5.1 and install goes about 2/3 on progress bar and hangs.

Terminated install with task manager, logged off and tried again same result

Terminated, logged off, noticed that 5.00.5050 was still installed, so I then uninstalled that from control panel

Again tried to install 5.1 with same failure

Logged off and reinstalled 5.00.5050, installed with no issues, runs with no issues

Win 7 Pro 64 bit

amd fx-8350 / 16 gig, nvidia Quadro 600

Norton 360 21.6.0.32

Thank you for letting us know that uninstalling a previous version of ccleaner allowed you to complete the install of the new version.

Thank you for letting us know that uninstalling a previous version of ccleaner allowed you to complete the install of the new version.

I think you misunderstood me. I have NOT been able to install 5.1 even after a full uninstall of 5.05

After trying numerous times, I simply reinstalled 5.05 which works as it had previously and at this point, will hope that the next release will install correctly.

Thanx