Friday, May 22, 2015

Top 10 reasons why Computers, Laptop crash which U must Know



10 reasons why PCs crash U must Know

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.

But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.

One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.

Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.

EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.

3 BIOS settings

Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.

Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.

A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.

Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).

4 Hard disk drives

After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to

-- Start-Programs-Accessories-System Tools-Disk Defragmenter

This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.

The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).

Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to

-- Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.

Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.

Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to

-- Start-Programs-Accessories-System Tools-ScanDisk

Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.

5 Fatal OE exceptions and VXD errors

Fatal OE exception errors and VXD errors are often caused by video card problems.

These can often be resolved easily by reducing the resolution of the video display. Go to

-- Start-Settings-Control Panel-Display-Settings

Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.

If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to

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

Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.

If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.

The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.

Another useful way to resolve video problems is to go to

-- Start-Settings-Control Panel-System-Performance-Graphics

Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).

Look up your video card's manufacturer on the internet and search for the most recent drivers for it.

6 Viruses

Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to

-- Start-Settings-Control Panel-Add/Remove Programs

Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.

A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.

An excellent antivirus programme is McAfee VirusScan by Network Associates . Another is Norton AntiVirus 2000, made by Symantec.

7 Printers

The action of sending a document to print creates a bigger file, often called a postscript file.

Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.

If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.

8 Software

A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.

The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.

Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained from www.jv16.org

Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.

Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.

Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.

Remember to restore all the BIOS settings back to their former settings following installation.

9 Overheating

Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.

One remedy is to get a bigger better fan and install it on top of the CPU.

CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.

10 Power supply problems
With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.
Read more

Friday, December 26, 2014

Top 10 Blacklisted Hacking countries in the world

10 Blacklisted Hacking countries:

1. China
The Chinese may not always guilty, but have a share of 41% of hacker attacks. Just one year before the Republic of China was responsible for only 13% of
cyber attacks according to Akamai, and share in the third quarter was 33%.

2. U.S.
Every tenth hacker attacks worldwide originated in the United States.

3. Turkey
Bronze medal for Turkey, accounting for 4.7% of global cybercrime.

4. Russia
Russia is considered to defuse the situation from 6.8% to 4.3% October-December 2012.

5. Taiwan
Taiwanese are responsible for 3.7% of computer crimes at the end of 2012

6. Brazil
Brazil registered a decline of hacking attacks - from 4.4% at the end of 2011 to 3.8% in the third quarter of 2012 and 3.3% - in the fourth.

Tech World Geeks

7. Romania
The seventh is Romania with a share of 2.8%.

8. India
India is responsible for 2.4% of hacking attacks worldwide.

9.Italy
Italy's share falling to 1.6%.

10. Hungary
Hungary is responsible for 1.4% of cyber attacks in
late 2012.

Read more

Saturday, December 20, 2014

Nicknames of Indian cities 2014 - we know pink city but which one is city of seven islands ? check out the list

Nicknames Of Indian Cities 2014

Diamond City - Surat (Gujarat)
Egg city - Namakkal (Tamilnadu)
City of golden Temple - amritsar (Punjab)
Pink City - Jaipur (Rajastan)
Garden City - Bangalore (Karnataka)
Twin Cities - Hyderabad and
Secundarabad(Andra pradesh)
Pearl City - Tuticorin (Tamil Nadu)
Weavers city - Panipat (Haryana)
Temple City - Bhuvaneswar (Orissa)
Sandal Wood City - Mysore (Karnataka)
Lake City - Udaipur (Rajastan)
Sun City - Jodhpur (Rajastan)
City of Palaces - Kolkata (West Bengal)
Bangle City - Hyderabad (Andra Pradesh)
Golden City - Jaisalmer(Rajastan)
City of Dawn - Auroville (Pondichery)
White City - Udaipur (Rajastan)
City of Blood - Tezpur (Assam)
Orange City - Nagpur (Maharashtra)
City of seven Islands - Mumbai
(Maharashtra)


Add your own in comment
Read more

Saturday, November 29, 2014

25 People who changed the internet forever and made our life better

1. Sir Tim Berners-Lee – World Wide Web
2. Vint Cerf And Bob Kahn – TCP/IP
3. Larry Page and Sergey Brin – Google Inc.
4. David Filo and Jerry Yang – Yahoo! Inc.
5. Bill Gates – Microsoft
6. Steven Paul Jobs – Apple Inc.
7. Mark Zuckerberg – Facebook
8. Chad Hurley and Steve Chen – YouTube
9. Linus Torvalds – Linux
10. Jack Dorsey – Twitter
11. Kevin Rose – Digg
12. Bram Cohen – BitTorrent
13. Mike Morhaime – Blizzard Entertainment
14. Jimmy Wales – Wikipedia
15. Jeff Preston Bezos – Amazon
16. Shawn Fanning – Napster, Rupture
17. Pierre Omidyar – eBay
18. Jack Ma – Alibaba
19. Craig Newmark – Craigslist
20. Matt Mullenweg – WordPress
21. Thomas Anderson – MySpace
22. Garrett Camp – StumbleUpon
23. Jon Postel – Internet Pioneer
24. Caterina Fake – Flickr
25. Marc Andreessen – Netscape 


Add you own in comment
Read more

Definitions of Virus, 3G,SIM, 3GP, MP4, pdf, DVD, CRT, HTTP, TCP, GPRS etc

* VIRUS - Vital Information Resource UnderSeized.
* 3G -3rd Generation.
* GSM - Global System for Mobile Communication.
* CDMA - Code Divison Multiple Access.
* UMTS - Universal MobileTelecommunication System.
* SIM - Subscriber Identity Module .
* AVI = Audio Video Interleave
* RTS = Real Time Streaming
* SIS = Symbian OS Installer File
* AMR = Adaptive Multi-Rate Codec
* JAD = Java Application Descriptor
* JAR = Java Archive
* JAD = Java Application Descriptor
* 3GPP = 3rd Generation Partnership Project
* 3GP = 3rd Generation Project
* MP3 = MPEG player lll
* MP4 = MPEG-4 video file
* AAC = Advanced Audio Coding
* GIF= Graphic Interchangeable Format
* JPEG = Joint Photographic Expert Group
* BMP = Bitmap
* SWF = Shock Wave Flash
* WMV = Windows Media Video
* WMA = Windows Media Audio
* WAV = Waveform Audio
* PNG = Portable Network Graphics
* DOC = Document (MicrosoftCorporation)
* PDF = Portable Document Format
* M3G = Mobile 3D Graphics
* M4A = MPEG-4 Audio File
* NTH = Nokia Theme (series 40)
* THM = Themes (Sony Ericsson)
* MMF = Synthetic Music Mobile Application File
* NRT = Nokia Ringtone
* XMF = Extensible Music File
* WBMP = Wireless Bitmap Image
* DVX = DivX Video
* HTML = Hyper Text Markup Language
* WML = Wireless Markup Language
* CD -Compact Disk.
* DVD - Digital Versatile Disk.
* CRT - Cathode Ray Tube.
* DAT - Digital Audio Tape.
* DOS - Disk Operating System.
* GUI -Graphical User Interface.
* HTTP - Hyper Text Transfer Protocol.
* IP - Internet Protocol.
* ISP - Internet Service Provider.
* TCP - Transmission Control Protocol.
* UPS - Uninterruptible Power Supply.
* HSDPA - High Speed Downlink PacketAccess.
* EDGE - Enhanced Data Rate for GSM[GlobalSystem for Mobile Communication] Evolution.
* VHF - Very High Frequency.
* UHF - Ultra High Frequency.
* GPRS - General PacketRadio Service.
* WAP - Wireless ApplicationProtocol.
* TCP - Transmission ControlProtocol .
* ARPANET - Advanced Research Project Agency Network.
* IBM - International Business Machines.
* HP - Hewlett Packard.
* AM/FM - Amplitude/ Frequency Modulation.
* WLAN - Wireless Local Area Network
Read more

Best Email Security Tips For Internet Users 2014 2015

Internet email security tips
1. Enable two step verification in you Email accounts.
2. Enable Login-notification for you email and get notification in your mobile whenever you login.
3. Set a strong password with a mix of alphabets, numbers and special charecters.
4. Enable login- notification for you facebook accounts to prevent unauthorised access.
5. Enable HTTPS in your email sttings annd your facebook account settings.
6. Never share your password with anyone. Even to your closest person.
7. Setup a recovery question which is difficult to answer and never setup an easy & guessable answer to your security question.
8. Never click on any links sent through mail or chat. It may be a link which can steal your cookie or inject any viruses.
9. Always check your address bar for proper website address before logging in.


Visit 99LocalAds.com for best deals in your city
Read more

Thursday, February 20, 2014

Facebook bought Whatsapp for $19 billion which is by far Facebook's largest acquisition to date

Whatsapp Acquired by facebook and  has agreed to pay $12 billion in stock and $4 billion in cash for the company. 
Facebook has also agreed to pay an additional $3 billion in restricted stock units to WhatsApp's founders and employees as part of the deal.
Jan Koum Founder of WhatsApp said
"We think that for our product, advertising is not necessarily the right way to go, We think we have a very solid monetization system in place."


Read more

Tuesday, January 21, 2014

Startup 99LocalAds.com providing Free Recharge for users for posting free ads

99LocalAds launched free recharge for those users who will register on 99LocalAds and post free ads.
This is really good step by 99LocalAds Team as none of their competitors providing such service for users.

Users can use 99localads as platform  to advertise their products, business or anything for free.

How to get Free Recharge ?

1) Register for free and create your account.
2) After validating your email, Post 20 genuine Free ads to get 10 Rs recharge for
Note : [Free recharge of 10 Rs for 20 free Ads, 20Rs for 40 Free Ads]
free.
3) Contact us after posting, we will verify your ads within few minutes.
4) Recharge will be done instantly
5) Login every day and post free ads to get recharge.
You may contact us on Facebook Page or by filling this contact page on left side.

Note : User can post as many ads as he/she can but can earn maximum of 20 Rs of free recharge per month by posting ads.
Read more

Thursday, November 07, 2013

99LocalAds – The Free Online Classifieds worldwide


Buying and selling online has become a part of life. 99LocalAds is one of the fastest growing online market for used items.Today, as the web became more accessible, thousands of buying and selling, online classifieds sites mushroomed the internet. One of the newest and rapidly growing classified sites is 99Localads.com. Founded in August 2013, 99localads is a mumbai based internet company which hosts free online classifieds advertisements posted by its users. 99Localads is available in almost all countries. - See more at:  Go to 99LocalAds
Read more

Saturday, October 19, 2013

DIFFERENCE BETWEEN CORE I3, CORE I5, CORE I7

DIFFERENCE BETWEEN CORE I3, CORE I5, CORE I7

 Core i3: 
* Entry level processor.
* 2-4 Cores
* 4 Threads
* Hyper-Threading ­ (efficient use of processor resources)
* 3-4 MB Cache
* 32 nm Silicon (less heat and energy)

Core i5: 
* Mid range processor.
* 2-4 Cores
* 4 Threads
* Turbo Mode (turn off core if not used)
* Hyper-Threading ­ (efficient use of processor resources)
* 3-8 MB Cache
* 32-45 nm Silicon (less heat and energy)

Core i7: 
* High end processor.
* 4 Cores * 8 Threads
* Turbo Mode (turn off core if not used)
* Hyper-Threading ­ (efficient use of processor resources)
* 4-8 MB Cache
* 32-45 nm Silicon (less heat and energy)
Read more