How to open and clean CD-ROM

Computer CD-ROM is a sensitive device and it need great care to open and clean it. Normallythey work good even having fair amount of dust on their lens but it can stop working when dust on the lens is more then enough. It can createtwo problems.

- Skipping/ Repeating CDs
- Stop reading
- Taking time in reading CDs

in this case you should make it sure that your CD-ROM need to be cleaned. 

Take following steps to open the CD-ROM:

• Take the CD-ROM out of CPU box
• Open the try of the CD-ROM and remove the front cover of the try.
• When try cover is removed you can removed the other cover on which play and eject button are situated.
• Now open the screw

Almost in the middle of the machine there is a lens you can see it from the bottom of the CD-ROM. There is a small screw which holds the lens you can adjust it to fix the lens. some times this screw is lose and lens cannot perform better. now take tissue paper and very softly clean the lens. Always use blower to clean other parts of CD-ROM. After finishing this job tight the screw and place the cover as it was removed. You will definitely see difference in CD reading

WINDOWS 7 short keys

Most of us are using windows 7 but few of them know  windows 7 shortcut keys, so its good to know some short keys.

 

WINDOWS 7 SHORTCUTS KEYS

WIN +UP arrow Maximize Window
WIN +DOWN arrow Restore or Minimize Windows
WIN +LEFT arrow Snap window to left
WIN +RIGHT arrow Snap window to right

WIN +SHIFT+LEFT arrow Move current window to left monitor
WIN +SHIFT+RIGHT arrow Move current window to right monitor

WIN +HOME key Minimize all windows

WIN +X Shows windows mobility centre
Win+Shift+left arrow Move current window to the left monitor (with dual monitors)
Win+Shift+right arrow Move current window to the right monitor (with dual monitors)
Win+Home Minimize all but the current window
Win+Space Peek at the desktop
Win+[Plus sign] Zoom in
Win+[Minus sign] Zoom out
Win+P Open the projection menu (generally used for laptops connected to projectors)
Alt+P In Explorer, show/hide the preview pane

Taskbar Modifiers 

Alt+F4 Close the active window
Alt+Tab Switch to previous active window
Alt+Esc Cycle through all open windows
Win+Tab Flip 3D [more info]

Ctrl+Win+Tab Persistent Flip 3D
Win+T Cycle through applications on taskbar (showing its live preview)
Win+M Minimize all open windows
Win+Shift+M Undo all window minimization
Win+D Toggle showing the desktop

Win+up arrow Maximize the current window
Win+down arrow If the current window is maximized, restore it; if the current
Win+Shift+left arrow Move current window to the left monitor (with dual monitors)
Win+Shift+right arrow Move current window to the right monitor (with dual monitors)

Win+Home Minimize all but the current window
Win+Space Peek at the desktop
Win+[Plus sign] Zoom in
Win+[Minus sign] Zoom out

Starting Programs

Shift+Click Open a new instance of the program
Ctrl+Click Cycle between windows in a group
Middle Click Open a new instance of the program
Ctrl+Shift+Click Open a new instance of the program as Administrator
Shift+Right-Click Show window menu Managing Windows

Win+1 Open the first program on your Quick Launch bar
Win+2 Open the second program on your Quick Launch bar
Win+n Open the nth program on your Quick Launch bar
Win+U Open the ease of access center
Win+F Open the search window
Win+X Open the Mobility Center
Win+E Open Explorer
Win+R Open the Run window [more info]
Win+B Move focus to notification tray (the right-most portion of the task bar)
Win+P Open the projection menu (generally used for laptops connected to projectors)

Win+Pause Open the System Properties portion from the Control Panel
Ctrl+Shift+Esc Open Windows Task Manager

Win+ right arrow +Enter Shutdown
Win+right arrow + R Restart
Win+ right arrow + S Sleep
Win+ right arrow + W Switch Users
Win+L Locks computer

Viewing Folders With Explorer

Alt+right arrow Go back
Alt+ right arrow Go forward
Alt+up arrow Go up a directory

Alt+D Move focus to address bar
Alt+D, Tab Move focus to search bar

Alt+Enter Open the Properties window of the current selection
Ctrl +Mouse wheel Change the view type (extra large, small, list view, detail, etc.)
Alt+P Show/hide the preview pane

How to make a strong password

Passwords are a pain and while many organizations require then, they have very simple , even lax rules for implementing a password strategy. Besides requiring your user s to use passwords, there are two other things you should require of them- password ageing - strong password, password aging is essential to minimize the chances of someone else discovering and using a password that may be shared, for example to help co-worker access the corporate network. a strong password (requiring a mix of letters, numbers and characters) minimizes the chance of someone obtaining a password through a social enineering exercise.
Another technique is to make a case sensitive password and use space (if allowed) and a mix of symbols like star or hash etc.

Computer buying tips

Here are few tips which will help you in buying a new computer

Step 1 : Evaluate your need

First of all make a rough idea what kind of PC you are looking to buy.

• Are you looking to buy a mini PC, desk tip or lap top ?
• What should be its configuration?
• Do you have any brand preference?
• What should be the quality of hardware?
• What should be the size of hard disk and ram?

Step 2 : Market Survey

After making this rough idea, try to find out prices of the PC you are looking for. For this purpose you can search from the Internet or go to the market for price survey. when you have done this job, next step is to check the PC that is that the one you are looking for?

Step 3 : Checking your PC

Initially there are certain checks you need to do. First of all check the hard drive size , ram size, cache memory, Processor size, key board quality or brand, mouse , Power supply. power cables

checking the monitor:

For new monitor there are always warranties so you don't need to worry when you are buying a new monitor.
If you are buying a branded computer then first of all check the screen. Is there any kind of bold on the screen or a minor dim in the screen, If so then ask the shop keeper.

Step 4 : Ask for warranties

Before paying the price for the PC, you need to ask to the shopkeeper that how the company will compensate in case the device is not functioning or is not compatible with your computer. what would be the procedure.