Custom Search

Saturday, September 17, 2011

10 reasons why PCs crash U must Know


10 reasons why PCs crash U must Know

Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."

You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?

1 Hardware conflict

The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.

For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.

If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:

* Start-Settings-Control Panel-System-Device Manager.

Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.

Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.

Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).

When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.

To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.

2 Bad Ram

Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.

Keyboard Shortcuts For Microsoft Excel


 F1 Key Help
F2 Key Edit current Cell
F5 Key Goto
F7 Key Spell Check
F12 Key Save file as
CTRL and A Select entire worksheet.
CTRL and B Toggle Bold Text.
CTRL and C Copies the item or items selected to the Clipboard and can be pasted using CTRL and V.
CTRL and F Displays the Find dialog box.
CTRL and H Displays the Replace dialog box.
CTRL and I Toggles Italic Text.
CTRL and N New File.
CTRL and O Open File.
CTRL and P Print.
CTRL and S Save File.
CTRL and U Toggles Underlined Text.
CTRL and V Paste the contents of the clipboard.
CTRL and X Cut the selected item.
CTRL and Y Redo the last undone action
CTRL and Z Undoes the last action.
CTRL and 1 Displays Format Cells Dialogue Box
CTRL and 5 Toggles Strikethrough Text

Keyboard Shortcuts Result in Excel 2000 - Formulas
ALT and = Autosum
ALT and F8 Macros
CTRL and ; Insert Current Date
CTRL and : Insert Current Time

Keyboard Shortcuts Result in Excel 2000 - Movement
Left Arrow One Cell Left (also SHIFT and TAB)
Right Arrow One Cell Right (also TAB)
Up Arrow One Cell Up
Down Arrow One Cell Down
Home Go to End of row
CTRL and left Arrow Go to End of Column
CTRL and Home Go to Top of Worksheet (A1)
CTRL and End Go to End of Worksheet
CTRL and PAGE-DOWN Go to Next Worksheet

Keyboard Shortcuts Result in Excel 2000 - Cell Selection
CTRL and Spacebar Select the entire Column
SHIFT and Spacebar Select the entire Row
CTRL and A Select Entire Worksheet
SHIFT and Left Cursor Select all cells to the left of the active one
SHIFT and Right Cursor Select all cells to the right of the active one

Most important Windows Tips for you


 Important Note: Before you read on, you need to keep one thing in mind. Whenever you make changes to the Windows Registry you need to Refresh it before the changes take place. Simply press F5 to refresh the registry and enable the changes. If this does not work Restart your system

****************

Exiting Windows the Cool and Quick Way

Normally it takes a hell lot of time just Shutting down Windows, you have to move your mouse to the Start Button, click on it, move it again over Shut Down, click, then move it over the necessary option and click, then move the cursor over the OK button and once again (you guessed it) click.This whole process can be shortened by creating shortcuts on the Desktop which will shut down Windows at the click of a button. Start by creating a new shortcut( right click and select New> Shortcut). Then in the command line box, type (without the quotes.)

'C:windowsrundll.exe user.exe,exitwindowsexec'

This Shortcut on clicking will restart Windows immediately without any Warning. To create a Shortcut to Restarting Windows, type the following in the Command Line box:

'c:windowsrundll.exe user.exe,exitwindows'

This Shortcut on clicking will shut down Windows immediately without any Warning.

Ban Shutdowns : A trick to Play on Lamers

This is a neat trick you can play on that lamer that has a huge ego, in this section I teach you, how to disable the Shut Down option in the Shut Down Dialog Box. This trick involves editing the registry, so please make backups. Launch regedit.exe and go to :

How To Make XP Go Faster


 Services You Can Disable

There are quite a few services you can disable from starting automatically.
This would be to speed up your boot time and free resources.
They are only suggestions so I suggestion you read the description of each one when you run Services
and that you turn them off one at a time.

Some possibilities are:
Alerter
Application Management
Clipbook
Fast UserSwitching
Human Interface Devices
Indexing Service
Messenger
Net Logon
NetMeeting
QOS RSVP
Remote Desktop Help Session Manager
Remote Registry
Routing & Remote Access
SSDP Discovery Service
Universal Plug and Play Device Host
Web Client
Cleaning the Prefetch Directory

WindowsXP has a new feature called Prefetch. This keeps a shortcut to recently used programs.
However it can fill up with old and obsolete programs.

To clean this periodically go to:

Star / Run / Prefetch
Press Ctrl-A to highlight all the shorcuts
Delete them



Not Displaying Logon, Logoff, Startup and Shutdown Status Messages

To turn these off:

Start Regedit
Go to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionpoliciessystem
If it is not already there, create a DWORD value named DisableStatusMessages
Give it a value of 1

How To Stop Spam


How To Stop Spam

Change Mcft to microsoft

HOW TO STOP SPAM VIA WINDOWS MESSENGER SERVICE
Below you'll find many ways (sorted in the most successful ratio first) to stop the Windows Messenger service, depending on your system environment, some may require more than one process. This service is available only on NT, 2K, XP & Server 2003. Administrator Login is REQUIRED

About The Messenger Service


* Messenger is a Windows Service that runs in the background
* Messenger is not the same as MSN Messenger or any other Instant Messaging Program
* Messenger does not facilitate two-way chatting
* Many Windows Programs, Firewalls, UPS and Antiviruses require the Messenger Service
* Antivirus and UPS software, among others, may not work if Messenger is disabled
* The Messenger Service is usually turned on by default in most Windows NT, 2K and XP systems

1. Manually

1. Example 1

1. Click Start, Run and enter the following command:
RunDll32 advpack.dll,LaunchINFSection %windir%\inf\msmsgs.inf,BLC.Remove
NOTE: This will prevent a long delay when opening Outlook Express if you have the Contacts pane enabled
2. To prevent this, click Start, Run and enter {REGEDIT} Go to:
HKEY_LOCAL_MACHINE\Software\Mcft\Outlook Express
3. Right click in the right pane and select New, Dword value
4. Give it the name Hide Messenger Double click this new entry and set the value to 2
5. End result should look EXACTLY like this:
System Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Mcft\Outlook Express]
Value Name: Hide Messenger
Data Type: REG_DWORD (DWORD Value)
Value Data: (2 = remove messenger)

2. Example 2

Nice list of windows shortcuts


 For Real Windows Newbie's here you go...

CTRL+C (Copy)
CTRL+X (Cut)
CTRL+V (Paste)
CTRL+Z (Undo)
DELETE (Delete)
SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)
CTRL while dragging an item (Copy the selected item)
CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)
F2 key (Rename the selected item)
CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
CTRL+A (Select all)
F3 key (Search for a file or a folder)
ALT+ENTER (View the properties for the selected item)
ALT+F4 (Close the active item, or quit the active program)
ALT+ENTER (Display the properties of the selected object)
ALT+SPACEBAR (Open the shortcut menu for the active window)
CTRL+F4 (Close the active document in programs that enable you to have multiple documents open simultaneously)

Win XP Tip, Hidden Back-up utility


Win XP Tip, Hidden Back-up utility

 Insert your windows XP disc into your PC.

Click exit if your installation screen comes up.

Now go too your CD drive in *My Computer*. Right-click and select open.

Choose VALUE ADD\MSFT\NT BACK-UP FILE.

In the *files of type* drop down list be sure that *select all files* is on.

Click on the NTBACK-UP.msi file and click okay.

Click the finish button and now go over too the start button\ALL PROGRAMS\ACCESSORIES\SYSTEM TOOLS\ and there it is now.. BACK-UP FILES...

Speed Up Your Network and Internet Access


Windows Xp: Speed Up Your, Speed Up Your Network and Internet Access

I have a dial up connection and it improve my speeds about 25% in surfing the internet. give it a try. Im IT , only do it if you feel comfortable with changing registry.

Increasing network browsing speed

Does your computer slow down when you browse your local area network and connect to other computers that are sharing data? One of the most common causes of this slowdown is a feature of Windows Explorer that looks for scheduled tasks on remote computers. This effort can take some time on some computers and can really slow down your browsing. The window with which you are browsing the network may appear to freeze momentarily, as the system is waiting for a response from the remote computer.

Windows XP: Speeding Disk Access

Although this problem is a complex one, the solution is very simple. Instead of having to wait for the remote scheduled tasks, which is useless information to anyone who is not a system administrator remotely configuring scheduled tasks, you can disable this feature.
Custom Search

Online Education Technology 2011 Headline Animator

Online Education Technology 2011