What's better Firefox or Internet Explorer

Firefox!!!!

Why? It's open source, meaning that development and evolution of the program occurs quickly. Features, such as tabbed browsing, tend to be superior (in IE they seem like an afterthought to compete with Firefox). Add-ons allow you to add all types of functionality to Firefox--anything from checking your e-mail account, to monitoring the weather, to adding snippets to your Google Notebook. Firefox is also much more efficient with RAM, which helps your computer run more smoothly than when running IE. Firefox is also much more secure, and has anti-phishing measures to prevent you from being suckered into "look-alike" PayPal sites etc. Bookmarks are also easily managed, and you can create buttons for quick access to favorite sites.

Internet explorer:
Opens fastest
Runs smoothly
Freezes occasionally
Crashes occasionally

Firefox:
Opens dreadfully slowly
Runs average to slow
Freezes rarely
Crashes very rarely

Opera:
Opens very slowly
Runs slowly
Freezes rarely
Crashes rarely

Safari:
Opens dreadfully slowly
Runs smoothly
Freezes often
Crashes occasionally

I use Safari for it's convenient favorites menu, but it's very incompatible, and slow, and it freezes a lot.

Internet Explorer has had a history of freezing and crashing, which is why I gave it up, but I think it's probably the best out there.

Firefox and Opera are the worst at loading pages and often freeze for a few seconds on every page load.
It's probably because of the unnecessary customization. Plus, none of them are any more compatible than internet explorer.

Firefox is much cleaner and if you ask me, more efficient. Almost any computer savvy person will be running Firefox, however, some scripts and ActiveX controls require IE still. The newest version of Firefox works with mostly everything but every once in awhile you'll find a website that will require you to flip over to Internet Explorer for some flash object or something similar but Firefox is definitely the way to go. You wont be bogged down by addons and popups nearly as much and the browser itself tends to be a little easier on your computers resources.

Why use Disk clean up

Delete files using Disk Cleanup

If you want to reduce the number of unnecessary files on your hard disk to free up disk space and help your computer run faster, use Disk Cleanup. It removes temporary files, empties the Recycle Bin, and removes a variety of system files and other items that you no longer need.

 Watch the demo (1:00)

1. 
   
   Open Disk Cleanup by clicking the Start button , clicking All Programs, clicking Accessories, clicking System Tools, and then clicking Disk Cleanup.
2. 
   
   In the Disk Cleanup Options dialog box, choose whether you want to clean up your own files only or all of the files on the computer.  If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
3. 
   
   If the Disk Cleanup: Drive Selection dialog box appears, select the hard disk drive that you want to clean up, and then click OK.
4. 
   
   Click the Disk Cleanup tab, and then select the check boxes for the files you want to delete.
5. 
   
   When you finish selecting the files you want to delete, click OK, and then click Delete files to confirm the operation. Disk Cleanup proceeds to remove all unnecessary files from your computer.

The More Options tab is available when you choose to clean files from all users on the computer. This tab includes two additional ways to free even more disk space:

• 
  
  Programs and Features. Opens Programs and Features in Control Panel, where you can uninstall programs that you no longer use. The Size column in Programs and Features shows how much disk space each program uses.
• 
  
  System Restore and Shadow Copies. Prompts you to delete all but the most recent restore point on the disk.
  System Restore uses restore points to return your system files to an earlier point in time. If your computer is running normally, you can save disk space by deleting the earlier restore points.
  In some editions of Windows Vista, restore points can include previous versions of files, known as shadow copies, and backup images created with Windows Complete PC Backup. This information will also be deleted. For more information about System Restore, search Windows Help and Support for "system restore."
  
  
  Refences:
  http://windows.microsoft.com/en-US/windows-vista/Delete-files-using-Disk-Cleanup
  Retrieval Date: 4/27/10

Reimaging from qualityitconcepts.com

Reimaging is a valuable technique for ensuring proper operation of a computer and recovering from software or operating system corruption or configuration issues. Reimaging wipes the hard drive and installs a clean installation of all relevant software, thus ensuring proper operation of a computer, apart from hardware failures.
Refence from google http://campus.houghton.edu/orgs/helpdesk/Page.aspx?ID=HD_Reimaging