Doug P

Try opening defraggler in Elevated Adminstrator Mode. Even though the icon may have the adminstrator shield, right-click the icon and "Run as Administrator." What this will do is ensure you get the dialog that asks do you want this program to make changes. Best, Doug

Actually, I found the problem. Somehow the option to minimize to the taskbar tray became enabled. I cannot say how as I did not even realize this was available.

I am using Windows 7 Home Premium on an HP Pavilion dv6. When I launch Defraggler, all looks good. If while Defraggler is open I also launch CCleaner, run a few things including registry clean, then close CCleaner, the active window and taskbar icon for Defraggler disappear. If I attempt to launch Defraggler again, a warning pops up saying it is already active. And sure enough, its listed in Task Manager. Since I am unable to get the window active again, I must kill the task and start over. I did not think these two would be interactive in this way, but apparently it can happen. thanks, -Doug

Hi, I was experiencing the very same problem and found a solution. I found very little help on the web and even in this forum. After attempting to locate the problem in the registry and in windows folder associations, i was very frustrated. My solution was to completely uninstall defraggler to remove whatever setting were in force, then reinstall. There will be a reboot required of your computer before reinstalling to completely flush the old system settings. I used the File Hippo link to do the reinstall and used the most recent version 2.05.315. http://www.filehippo.com/download_defraggler/ Hope this helps, -doug