Codecs: frequently asked questions

Here are answers to some common questions about codecs. What is a codec? Which codecs are included with the Player? Why do I get a message that says my computer is missing a codec? How do I find a codec? What is a DVD decoder? Why can't I play a file at work that I can play at home? I installed a missing codec, but I still can't play the file. Why? How do I tell which codecs are installed on my computer? How do I tell which codec was used to compress a file and what format a file is in? Are codecs and file formats the same?

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ClearType: frequently asked questions
Here are answers to some common questions about ClearType. What is ClearType? How do I get ClearType? How does it work? Do I need an LCD or CRT monitor to use ClearType? Can I tune ClearType? Are some fonts optimized for ClearType?


BIOS: frequently asked questions
Here are answers to some common questions about basic input/output system (BIOS). What is BIOS? Do I need to do anything with BIOS? What kind of BIOS does my computer have? How do CMOS and ACPI relate to BIOS? How do I access my computer's BIOS? How do I update BIOS?


Windows Media Player frequently asked questions
For answers to some common questions about using Windows Media Player, see the following topics.


Viruses: frequently asked questions
Here are answers to some common questions about viruses, worms, and Trojan horses. What is a virus? Are all viruses harmful? What is a worm? What is a Trojan horse? What is a blended threat? How do I prevent viruses? How do I know if my computer has a virus? How do I check for and remove viruses?


Turn off a computer: frequently asked questions
Here are answers to some common questions about turning off a computer. How do I turn off my computer? Why doesn't my computer shut down? Should I use sleep or shut down my computer? Can I change what happens when I click the power button?


Windows registration: frequently asked questions
Here are answers to some common questions about Windows registration. What is registration? How do I register Windows? Is registration required? Is registration the same as activation?


System Restore: frequently asked questions
Here are answers to some common questions about System Restore. How does System Restore work? Can I undo the changes System Restore makes? What files are changed during a system restore? How do I choose a restore point? How long are restore points saved? What if System Restore doesn't fix the problem?


Folders: frequently asked questions
Here are answers to some common questions about using folders in Windows 7. What is a folder and how is it different from a library? Should I save my files to a folder or a library? Can I change the icon for a folder? Where are the menus that used to appear at the top of open folders in previous versions of Windows? Where did the folder list go? What is the address bar and what kind of information does it display?


Windows Media Player playlist: frequently asked questions
Here are some answers to common questions about playlists in Windows Media Player. What is a playlist and why would I want to use one? What's the difference between a regular playlist and an auto playlist? Where are my playlist files stored on my computer? Can I save a playlist in another format? Why are some of the items in my playlist dimmed?


Back up and restore: frequently asked questions
Here are answers to some common questions about backing up and restoring files. What backup tools does Windows provide? How much storage space do I need to back up files? How do I view the contents of my backup? How do I restore files? Can I recover files that I have accidentally deleted? How do I get my files back if my computer stops working?


Rip music: frequently asked questions
Here are answers to some common questions about ripping CDs in Windows Media Player. What is ripping? What happens if I decide to copy protect music that I rip? Where do I find the files that I ripped? Can I rename or move files that I have already ripped? Can I listen to music while ripping?


InPrivate: frequently asked questions
Here are answers to some common questions about InPrivate. What is InPrivate Browsing? How do I turn on InPrivate Browsing? What is InPrivate Filtering? How do I turn InPrivate Filtering on and off? How do I manually choose content to block or allow?


Fonts: frequently asked questions
Here are answers to some common questions about fonts. What's a font? What font types are included in Windows? Where can I find more fonts? How can I make on-screen fonts clearer? How can I make sure that the text I print looks the same as it does on my screen? Why do the fonts in my file look different when I open the file on another computer? Should I be aware of any issues when installing fonts?


User accounts: frequently asked questions
Here are answers to some common questions about user accounts. What is a user account? Do I need a user account to use Windows? Do I need to use a password on my account? How can I switch to a different user account?
Can I change an account to a different type?


Sound cards: frequently asked questions
Here are answers to some common questions about sound cards, sound processors, testing speakers, and general problems with sound. What is a sound card? What should I do if I can't hear sound coming from my computer? How do I turn a sound card on or off? How do I test my sound card? How do I test my speaker configuration? Can I upgrade the sound in my laptop?


Mobile broadband: frequently asked questions
Here are answers to some common questions about mobile broadband connections. Where can I find my subscription, device, and mobile broadband provider details? What is a SIM? What is a mobile broadband PIN and how does it work? Where do I get the PIN? Where do I get an access string or access point name (APN)? How do I restart the device?


Libraries: frequently asked questions
Libraries are new in Windows 7. Here are answers to some common questions about libraries. What is a library? How do I create or change a library? What happens if I delete a library or the items in a library? Why can't I search or arrange files from a folder that I recently included in a library? What types of locations are supported in libraries? Why did I get a message saying that a location can't be included because it's not indexed?


XPS documents: frequently asked questions
Here are answers to some common questions about XPS documents. What is an XPS document? How do I create an XPS document? How do I view an XPS document? How can I verify and protect an XPS document?


Corrupted files: frequently asked questions
Here are answers to some common questions about corrupted files. What are corrupted files? What should I do if I encounter a corrupted file? What if I can't fix a corrupted file? How do I prevent files from becoming corrupted?


Installing programs: frequently asked questions
Here are answers to some common questions about installing programs. How do I activate Windows? Can I uninstall Windows 7? How do I install updates to Windows? Can I install a program made for an earlier version of Windows? Why do I have to be an administrator to install a program? How do I change the folder where a program installs?