Hi, I have what appears to be a Context menu handler issue with my Windows 7 Home Premium - 64Bit. I just discovered that if I right-click a file ( .txt , .avi , etc), and attempt to use "Open With", I do get a previously used list of programs to select from in the drop down list that appears. However, if I then select the "choose default program ..." dialog box, to find an alternative program to use, I keep ending up with the error message: "This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the default programs control panel ." I tried re-booting without success. Looked at system restore and (STUPIDLY), I only had 2 very recent restore points to go back to, (I've since increased the restore storage allowance for the drives). Restore doesn't take me back to a usable state for this issue. The default file types doesn't seem to be the problem, as all my files do have default programs associated with them. I can even select one of the alternatives from the right-click pop-up option menu, and the file open appropriately. I can also open and use the Default Program application via Control Panel. The error message comes up as soon as I click on "choose default program...", from the bottom of the pop-up menu. It's as though that dialog isn't associated with the "Open with'' application anymore. When I can get to the "Open with" application through other means, ..... the "Always use...." is greyed out, so it becomes a permanent selection / rather than temporary. I know I can sort a work-around out to re-select a default program, in a round-about way, ... but I'd just love to sort whatever has gone wrong with the right click context menu. Whilst browsing around, I came accross this (but for Windows XP): Clicking the "Open With" or "Choose Program..." option always opens the file with Notepad? Note the second suggested error message. It's almost exactly what I'm getting in Win 7. XP: "This file does not have a program associated with it for performing this action. Create an association in the Folder Options control panel." Win 7 (my error message): "This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the default programs controll panel." Might I be on the right track, by any chance? Could this Registry key have become corrupted? Here's what I found........... HKEY_CLASSES_ROOT\Unknown\shell\openas\command Then double clicked default, and here is the value data for (Default): %SystemRoot%\system32\rundll32.exe %SystemRoot%\system32\shell32.dll,OpenAs_RunDLL %1 If it's not this key, then I feel sure it's a Context menu handler that's become corrupted, for "Open with'' somewhere. I'm hoping someone might point me in the right direction. I'm reasonably confident in backing up / exporting and saving Registry keys - just not knowledgeable enough to know where to root around and know what should or shouldn't be there. Apologies if this ends up in the wrong forum. Any help much appreciated thanks. :O)

This issue occurs if related Registry values are removed or incorrectly changed. Have you used any Registry cleaner before? You may launch the Windows 7 installation program in the current system, and do In-place Upgrade to repair the system. Your personal data and installed programs will not be removed after repair. However I still suggest that you back up important data before In-place Upgrade.Arthur Xie - MSFT

I had selected Adobe Acrobat to open a .png file. I get an error message that says Adobe Acrobat does not support the program. I changed the default setting to Microsoft Media and then Microsoft Media shows as the default program for .png files. However, when I try to open the file, I get a message that says that Adobe Acrobat does not support this program. "Open" takes me directly to Adobe Acrobat and does not give any option to "Open With." What Can I Do?

How do I do that?