The 21 greatest PC mysteries -- solved!

Find out why your documents won’t print, where your downloads disappear to, what a .dat file is and much more.

By Rick Broida, PC World |  Windows, troubleshooting

DCIM (for Digital Camera IMages) is the default directory structure for digital cameras--and having such a standard is very useful.

My Recycle Bin has disappeared. How do I go about restoring it?

Whether it was a victim of a glitch or never available in the first place, you can follow a few simple directions to restore the Recycle Bin.

Why does Windows sometimes reboot without my permission, and how do I prevent that from happening?

This problem relates to how Windows installs automatic updates. Fortunately, you can make some tweaks.

Where do all these mysterious Web browser toolbars come from, and how do I get rid of them?

Sometimes spyware installs browser toolbars, and sometimes you do it accidentally during software installation.

How did I end up with QuickTime on my PC, and do I need to keep it?

This media-playback software comes bundled with iTunes and installs along with it.

I have Microsoft Word installed on my PC. Why can't I open the .docx files my friend sent me?

If you use Word 2003 or an earlier version of the program, all you need is the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats.

Why won't Windows allow me to delete a certain file?

If Windows refuses to delete a file or folder, some application or process is accessing it.

Why do some programs leave files and folders behind even after I've uninstalled them?

Many programs' uninstallers are ineffective. Use a utility that removes not only the application but also all of the pieces it leaves behind.

Why do Adobe Reader and Java update so frequently? Do I have to allow it?


Originally published on PC World |  Click here to read the original story.
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