DELETING MULTIPLE OPERATING SYSTEM

a. start the windows operating system you want to keep.if u have a dual boot or dual operating system at initial bootup, it will give you a choice of which operating system to go to. use the arrow key to choose which of the two you will keep, then hit enter."
b. determine the window folder you want to keep by doing the fooling steps:click on "start" click"run"type %windir%,then click on "ok"this may show up like this"c:\windows" or any other name on your machine.
c. do not delete the working windows folder.
d. go to the windows explorer by going to"start" click on "run"and typing"explorer"to find the windows you want remove.
e. right-click on the windows folder you want to delet, then click the "delete" make sure that this is not your working window before you delete it
f. click"yes"to confirm the deletion of the second windows operating system .
g. go to "start"choose "my computer"and click right it. then choose"properties"go to the "advanced"tab under"startup and recovery"click "setting"this will open the dialog box titled "startup and recovery."
h. go to the "system startup"then click "edit"to modify the boot.in file with a name "boot.old" close this backup copy by clicking on the "file" menu then click "exit".
i. save a backup copy of the boot.ini file before proceeding. to do this click "save as" on the "file" menu in notepad. to avoid any confusion, save the boot.ini file with a name "boot.old" close this backup copy by clicking on the "file" menu, then click "exit"
j. re-open the boot.ini file by repeating step(i). identify and then delete the line of the text for the windows operating system that you want to remove the boot loader. if the second windows folder you have identified in step 4 is the microsoft windows xp home edition operating system, remove the following line of text from the boot.ini file: multi(0)disk(0)rdisk(0)partition(1)\windows.0="microsoft windows xp home"/fastdetect
k. save your changes to the boot.ini file by clicking on the "file" menu, then "save"then close the boot.ini notepad by clicking on "exit"or the "x" box in upper right corner of the notepad. click on "ok"to close the "startup and recovery" dialog box.
l. restart your computer. this time, you will only have one operating system at startup.

windows7 shortcut keys

                                                20 essential pc shortcuts

There are certain shortcuts I use all day, every day. They work whether I’m doing stuff with photos, music, documents, or spreadsheets.

• Copy a selected item: Ctrl+C
• Cut a selected item: Ctrl+X
• Paste a selected item: Ctrl+V
• Undo an action: Ctrl+Z
• Redo that thing I just undid: Ctrl+Y
• Select everything: Ctrl+A
• Print: Ctrl+P

Manage open windows

Chances are, you use your PC to do a lot of things at once. Shortcuts go a long way towards cutting the clutter. Go ahead and try these out as you read about them.

• Switch between open windows
  Alt+Tab
  If you have lots of open windows and you're not sure exactly which one you need, press Alt+Tab, and get a quick thumbnail view of all open windows. Then, while holding down the Alt key, press the Tab key multiple times until you get to the window you want.
  Press Alt+Tab to switch between open windows
• Clear away everything and show the desktop
  Windows logo key +D
  Use this shortcut when you want to minimize a lot of open windows at once to check something on your desktop. Clutter-to-clean with two fingers.
  A desktop before pressing Windows logo key+D
  The same desktop after pressing Windows logo key+D
• Minimize the window
  Windows logo key +Down Arrow
  Minimizing a window is a surefire way to see what's underneath it. And it's fast to use the shortcut. If the window is maximized already (covering the entire screen) it'll go to “normal” size. And if it's normal size, it'll minimize entirely.
• Maximize the window
  Windows logo key +Up Arrow
  Maximizing windows works the same way.

Get even funkier with window management

It may surprise you to learn that there are even more options when it comes to dealing with your open windows and programs—but there are.

• Compare and contrast in a snap
  Windows logo key +Left Arrow or Right Arrow
  Snap is the easiest way I know to compare two documents—or to write up something while also looking at a web browser. The shortcut for Snap makes it even snappier. Go ahead and try this now.
  While pressing the Windows logo key , click the Right Arrow key or the Left Arrow key and your browser will slide over to one side. Select another window (such as a Word document) and use the shortcut only with the opposite arrow.
  You can use a keyboard shortcut to view windows side-by-side with Snap
• Multitask with multiple monitors
  Windows logo key +Shift+Right Arrow or Left Arrow
  Do you use more than one monitor at a time? Now you can shift an open window to your other monitor in less than a second.

Manage tasks

You might already be using a shortcut—Ctrl+Alt+Delete—to open up Task Manager or to lock your computer. But there are shortcuts for this shortcut.

• Open Task Manager
  Ctrl+Shift+Esc
  This simple shortcut whisks you straight to Task Manager—without any intermediary steps.
  Task Manager in Windows 7
• Lock your PC or switch users
  Windows logo key +L
  This shortcut locks your PC and instantly displays the login screen.

Display your way

No matter how you want to view your PC, shortcuts help you get there faster.

• Choose a presentation display mode
  Windows logo key +P
  Whether you're giving a presentation or are using multiple monitors, it's simple to switch settings.
  Choosing a presentation display mode
• Zoom in, zoom out
  Windows logo key +Plus Sign or Minus Sign
  The Plus Sign key (+) zooms you in, the Minus Sign key (-) zooms you out. This lets you see small text on a webpage or to check out the pixels in a photo.
  You can use your keyboard to zoom in on a photo detail

A few last tricks

Here are a few final shortcuts. For more keyboard shortcuts, check out the complete list.

• Search for files and folders
  Windows logo key +F
  In the past, finding a file could be like an archaeology expedition. But nowadays, search is really fast and thorough. Use this shortcut to get a search window, type in a few keywords, and presto, you’ll get your file.
• Open a new instance of a program
  Windows logo key +Shift+Click a taskbar icon
  I like Internet Explorer tabs—but sometimes I want a whole new browser window. To get one, I just click the Internet Explorer icon while holding down Shift.
• And when you need it...get help
  Windows logo key +F1
  It's the simplest shortcut out there. When all else fails, and you're just not sure what to do, press F1.