Sometimes hard disk does not run at its maximum.You will know that if your pc become extremely slow.Any command will take huge time to complete.You can cheeck disk speed by any disk speed utility.Generally hard disk read write speed arround 50mb/s.But when it becomes 2-3mb/s,you will feel the change.Why this happens?When your hard disk connection become loose quite a few time.You restart your pc but pc can't find your hard disk.

You can solve this by following this steps:(Read the full procedure first)

Instructions:

1.Right click my computer.click properties.

2.In system properties window select hardware tab.

3.Click device manager.

4.Go in the IDE ATA/ATAPI controllers.Your harddisk may connect one of Primary IDE channel or secondary channel.You have to check both of them.

5.First right click Primary IDE channel.click properties.click advanced settings tab.
Under device 0 and device 1 section change the settings.
(a)Device type should be:Auto detection.
(b)Transfer mode select :DMA if available".The "PIO only" cause the problem.

6.Do the same for secondary IDE channel.Then restart pc.

7.If you still have the problem.There is a simple solution.You just right click Primary IDE and secondary IDE channel and uninstall them.Your pc will ask for restart.After restart your pc will go in the default setting.

That's it problem solve.You may think why i make this step 7,it should be step 1.But i think you should know those first. If these tips help you please fell free to comments on that.

Keyboard shortcut is really an essential part for any computer users. It will enable you to work faster than original. Also you can make a good attraction by doing so. In windows 7 there are some qualified shortcut which will not in the older version. Here you get these keyboard shortcut as well as other from older version.

Using Windows Key:

>Windows Key + Tab = Dynamic selection of all active widow.
>Windows Key + Home bottom = Minimize all windows except current window.
>Windows Key + E = Launch windows explorer or my computer
>Windows Key + R = Launch run command
>Windows Key + U = Launch Ease of Access center
>Windows Key + P = Launch projector
>Windows Key + T = Walking through super taskber item
>Windows Key + D = Show or Hide desktop
>Windows Key + M = Minimize all windows
>Windows Key + L = Lock computer
>Windows Key + Up Arrow = Maximize current window
>Windows Key + down Arrow = Minimize current window
>Windows Key + Left Arrow = Snap to left hand side of screen
>Windows Key + Right Arrow = Snap to right hand side of screen
>Windows Key + Space = All windows become transparent
>Windows Key + Plus(+) = magnifier (Zoom in)
>Windows Key + minus(-) = magnifier (Zoom out)

Others:

Ctrl + Shift + N = Create new folder (This is most important shortcut added in windows 7)
Press alter = Launch file option bar/ Folder option
F5 = Drop down of menu

If these article can help you please feel free to comment on it. Add more shortcut you discover using windows 7.

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