1. MONITOR LED IS BLINKING
Check all the connections like Monitor Cable, Data cables,RAM, Display Card , CPU connections.
2. CONTINUOUS THREE BEEPS
Problem in RAM Connection.
3. THREE BEEPS ( 1 Long 2 Short)
Problem in Display Card Connection
4. THREE LONG BEEPS PERIOD WISE
Problem in BIOS or RAM (Basic Input Output System)
5. CONTINUOUS NON-STOP BEEPING
Key Board Problem (I.e.; Some Key is pressed for Longer time)
6. FDD LED IS GLOWING CONTINUOUSLY
Data cable to be connected properly (twisted cable).
7. NO DISPLAY ON THE SCREEN AT ALL
Hard Disk cable connected wrongly. Connect rightly seeing the Red mark (Faces power supply) and then Restart.
8. POWER LED IS OFF
a. Check main power cord
b. Check S.M.P.S.
c. Check Mother Board connection
9. SHOWING CMOS ERROR
Replace 3 Volt battery of Mother Board . Set Original Settings Manually.(Refer CMOS Setup chart)
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10. SHOWING FDD ERROR OR FLOPPY DRIVE IS NOT WORKING PROPERLY
Check Power cord of FDD , Data Cables , set CMOS & Finally the Check drive.
11. SHOWING HDD ERROR OR HARD DISK FAILURE
a. Check Power Cord
b. Check connection of HDD
c. Check Data cable
d. Check Hard Disk parameters in CMOS or Auto detecting Setting Partitions by Fdisk Command, then format it to set track 0.
12. MOTHER BOARD HANGS DUE TO UNSTABILIZED POWER SUPPLY
a. Check S.M.P.S
b. RAM not functioning properly.
c. Software problem (due to using pirated software)
d. CPU fan not functioning properly.
13. DANCING SCREEN
a. Check Display card connection
b. Virus Problem
c. Video Memory Problem
14. SHAKING SCREEN
a. Earthing problem
b. Magnetic waves comes around.
15. CPU CABINET SHOCK
a. Check Earthing
b. Check main power cord.
16. NON-SYSTEM DISK ERROR
a. Floppy Drive having different disk (Non-Bootable Disk) OR CMOS Parameters for Hard Disk may not be set properly.
b. Hard Disk Partitions may not be created.
c. Hard Disk may not be formatted.
7. MISSING OPERATING SYSTEM
The System files missing namely Ie; command.com} - User File IO.SYS & MS_DOS.SYS } - Hidden Files. These above three files required for Start up of the system that can be transferred by using SYS C: Command OR While the time of formatting by using Format c:/u/s
18. MISSING COMMAND INTERPRETOR
May the file Command.com is corrupted OR Infected by Virus OR Some one has Erased it.
19. SHOWING I/O ERROR
a. The type of Hard Disk in CMOS may not be set properly.
b. Operating system used for formatting is not valid
20. SHOWING DIVIDE OVER- FLOW MESSAGE
a. May some Directories or Files crash with other files.
b. Use CHKDSK/F or SCANDISK Command to correct it.
21. HARD DISK MAKING NOISE WHILE PROCESSING
a. Unstabilized power supply.
b. Check for Loose Contact.
c. Do not use Y Connectors for Hard Disk.
d. It may create Bad Sector OR Weak Hard Disk.
22. HARD DISK HANGS WHILE PROCESSING
Check for Bad Sector by using CHKDSK or SCANDISK Command. If found format the Hard Disk and set Partition before that area.(This is the only procedure to use Hard Disk with Bad Sector) OR (To avoid Bad Sectors use Standard Power Supply)
23. HARD DISK NOT DETECTED
a. Check Power Connector
b. Check Data Cables
c. Check Jumpers
24. PARTITION NOT SHOWN
Operating System where the Hard Disk formatted is not supported with present Mother Board. For Eg: Hard Disk formatted with Pentium System will hide their partitions for 486 System.
25. MMX/DLL FILE MISSING
May the above files may be corrupted due to power failure or Virus. Make available above files from other Computer. OR Reinstall Windows 98 Operating System. (This procedure will not make any effect on existing Data).
26. WINDOWS REGISTRY ERROR
This will happen due to sudden ON/OFF of the system. Final solution is to Reinstall Operating System.
27. DISPLAY COLOUR DOES NOT MATCH
a. Configure Display Card properly with their CD.
b. The Standard setting for Windows is set it to 800x600 for better performance.
28. UNKNOWN DEVICE FOUND
May the Driver utility is not provided with operating system . Insert Driver CD and install software for the above Device. (Every Device requires driver utility to set active
Tuesday, November 4, 2008
How To - Protect Your PC Files From External Attack
Essential to peace of mind is protecting the PC and your online privacy. When connected to the web, your work and data is open to attacks of various kinds including harmful downloads. A simple game, picture, or program may be the vehicle for malevolence. So, you need to check whether every file that you download, open, or save, is safe or whether there are irregularities of any kind.
Protect your PC by:
• Blocking hackers and viruses by installing the latest firewall and antivirus software. It is advisable to install a software firewall even if you have a hardware firewall in your system. A software firewall is designed to query whether or not it should permit “X,” access. The user can specify which applications can access the port and which cannot. A bi-directional firewall such as ZoneAlarm3 and Personal Firewall 5 will monitor both inbound and outbound traffic preventing Trojans and backdoor programs from functioning.
• Block downloads that install unwanted programs by using the options in Internet explorer to block all software from source X specified by you.
• Install software programs that will constantly scan your PC for spyware, adware, dialers, and web bug traces which can create a nuisance and cause crashes, slow down systems, or steal financial information. By adding a schedule you can instruct NoAdware to automatically scan your PC at set times for in-filtrations.
• Immunize your PC and prevent malicious add ons to your system.
• Configure your PC browser to protect you when you are working online. Use a ‘real time shield’ and prevent intrusions. Be sure to click the “protect IE Favorites” box and ensure that no thief can add an URL without your permission to your browser’s favorites list. This will block offensive and dangerous websites from entering your PC environs.
• Say “no” to any web address or site that instructs you to download specific software to view their pages. Such software can contain a virus, Trojan horse, or auto dialer.
• Create a regular back up schedule for your work. Once a week is ideal if you are a virtual worker or running a business. This will minimize any damage should problems arise.
• Be sure to update your software with the latest patches and bug fixes. Then use the updated or enhanced security settings provided by the updates. There are in built ways which you can operate to block damaging viruses, stamp out cookies, and keep unwanted visitors away from your computer system. The method is easy for example if you are using Internet Explorer just go to Tools-Internet Options-Privacy tab. Click the edit button to accept or reject a specific cookie. Go to the advanced settings and check block third party cookies.
• Scan all downloaded files before use. Never launch executable or scriptable files namely those that have dot.exe; .bat ;.doc; .vbs extensions. Do not access attachments of any kind before they are certified as safe.
• Remove file sharing and windows printer options these increase vulnerability of the PC.
• Encrypt your e-mail and embed an identifying key.
Better be sure than sorry. Preventing snoops is easier than trying to recover after an attack. Take informed steps to protect yourself and your PC
Protect your PC by:
• Blocking hackers and viruses by installing the latest firewall and antivirus software. It is advisable to install a software firewall even if you have a hardware firewall in your system. A software firewall is designed to query whether or not it should permit “X,” access. The user can specify which applications can access the port and which cannot. A bi-directional firewall such as ZoneAlarm3 and Personal Firewall 5 will monitor both inbound and outbound traffic preventing Trojans and backdoor programs from functioning.
• Block downloads that install unwanted programs by using the options in Internet explorer to block all software from source X specified by you.
• Install software programs that will constantly scan your PC for spyware, adware, dialers, and web bug traces which can create a nuisance and cause crashes, slow down systems, or steal financial information. By adding a schedule you can instruct NoAdware to automatically scan your PC at set times for in-filtrations.
• Immunize your PC and prevent malicious add ons to your system.
• Configure your PC browser to protect you when you are working online. Use a ‘real time shield’ and prevent intrusions. Be sure to click the “protect IE Favorites” box and ensure that no thief can add an URL without your permission to your browser’s favorites list. This will block offensive and dangerous websites from entering your PC environs.
• Say “no” to any web address or site that instructs you to download specific software to view their pages. Such software can contain a virus, Trojan horse, or auto dialer.
• Create a regular back up schedule for your work. Once a week is ideal if you are a virtual worker or running a business. This will minimize any damage should problems arise.
• Be sure to update your software with the latest patches and bug fixes. Then use the updated or enhanced security settings provided by the updates. There are in built ways which you can operate to block damaging viruses, stamp out cookies, and keep unwanted visitors away from your computer system. The method is easy for example if you are using Internet Explorer just go to Tools-Internet Options-Privacy tab. Click the edit button to accept or reject a specific cookie. Go to the advanced settings and check block third party cookies.
• Scan all downloaded files before use. Never launch executable or scriptable files namely those that have dot.exe; .bat ;.doc; .vbs extensions. Do not access attachments of any kind before they are certified as safe.
• Remove file sharing and windows printer options these increase vulnerability of the PC.
• Encrypt your e-mail and embed an identifying key.
Better be sure than sorry. Preventing snoops is easier than trying to recover after an attack. Take informed steps to protect yourself and your PC
Some Windows XP Tricks
1. It boasts how long it can stay up. Whereas previous versions of Windows were coy about how long they went between boots, XP is positively proud of its stamina. Go to the Command Prompt in the Accessories menu from the All Programs start button option, and then type 'systeminfo'. The computer will produce a lot of useful info, including the uptime. If you want to keep these, type 'systeminfo > info.txt'. This creates a file called info.txt you can look at later with Notepad. (Professional Edition only).
2. You can delete files immediately, without having them move to the Recycle Bin first. Go to the Start menu, select Run... and type 'gpedit.msc'; then select User Configuration, Administrative Templates, Windows Components, Windows Explorer and find the Do not move deleted files to the Recycle Bin setting. Set it. Poking around in gpedit will reveal a great many interface and system options, but take care -- some may stop your computer behaving as you wish. (Professional Edition only).
3. You can lock your XP workstation with two clicks of the mouse. Create a new shortcut on your desktop using a right mouse click, and enter 'rundll32.exe user32.dll,LockWorkStation' in the location field. Give the shortcut a name you like. That's it -- just double click on it and your computer will be locked. And if that's not easy enough, Windows key + L will do the same.
4. XP hides some system software you might want to remove, such as Windows Messenger, but you can tickle it and make it disgorge everything. Using Notepad or Edit, edit the text file /windows/inf/sysoc.inf, search for the word 'hide' and remove it. You can then go to the Add or Remove Programs in the Control Panel, select Add/Remove Windows Components and there will be your prey, exposed and vulnerable.
5. For those skilled in the art of DOS batch files, XP has a number of interesting new commands. These include 'eventcreate' and 'eventtriggers' for creating and watching system events, 'typeperf' for monitoring performance of various subsystems, and 'schtasks' for handling scheduled tasks. As usual, typing the command name followed by /? will give a list of options -- they're all far too baroque to go into here.
6. XP has IP version 6 support -- the next generation of IP. Unfortunately this is more than your ISP has, so you can only experiment with this on your LAN. Type 'ipv6 install' into Run... (it's OK, it won't ruin your existing network setup) and then 'ipv6 /?' at the command line to find out more. If you don't know what IPv6 is, don't worry and don't bother.
7. You can at last get rid of tasks on the computer from the command line by using 'taskkill /pid' and the task number, or just 'tskill' and the process number. Find that out by typing 'tasklist', which will also tell you a lot about what's going on in your system.
8. XP will treat Zip files like folders, which is nice if you've got a fast machine. On slower machines, you can make XP leave zip files well alone by typing 'regsvr32 /u zipfldr.dll' at the command line. If you change your mind later, you can put things back as they were by typing 'regsvr32 zipfldr.dll'.
9. XP has ClearType -- Microsoft's anti-aliasing font display technology -- but doesn't have it enabled by default. It's well worth trying, especially if you were there for DOS and all those years of staring at a screen have given you the eyes of an astigmatic bat. To enable ClearType, right click on the desktop, select Properties, Appearance, Effects, select ClearType from the second drop-down menu and enable the selection. Expect best results on laptop displays. If you want to use ClearType on the Welcome login screen as well, set the registry entry HKEY_USERS/.DEFAULT/Control Panel/Desktop/FontSmoothingType to 2.
10. You can use Remote Assistance to help a friend who's using network address translation (NAT) on a home network, but not automatically. Get your pal to email you a Remote Assistance invitation and edit the file. Under the RCTICKET attribute will be a NAT IP address, like 192.168.1.10. Replace this with your chum's real IP address -- they can find this out by going to
CODE
www.whatismyip.com
-- and get them to make sure that they've got port 3389 open on their firewall and forwarded to the errant computer.
11. You can run a program as a different user without logging out and back in again. Right click the icon, select Run As... and enter the user name and password you want to use. This only applies for that run. The trick is particularly useful if you need to have administrative permissions to install a program, which many require. Note that you can have some fun by running programs multiple times on the same system as different users, but this can have unforeseen effects.
12. Windows XP can be very insistent about you checking for auto updates, registering a Passport, using Windows Messenger and so on. After a while, the nagging goes away, but if you feel you might slip the bonds of sanity before that point, run Regedit, go to HKEY_CURRENT_USER/Software/Microsoft/Windows/Current Version/Explorer/Advanced and create a DWORD value called EnableBalloonTips with a value of 0.
2. You can delete files immediately, without having them move to the Recycle Bin first. Go to the Start menu, select Run... and type 'gpedit.msc'; then select User Configuration, Administrative Templates, Windows Components, Windows Explorer and find the Do not move deleted files to the Recycle Bin setting. Set it. Poking around in gpedit will reveal a great many interface and system options, but take care -- some may stop your computer behaving as you wish. (Professional Edition only).
3. You can lock your XP workstation with two clicks of the mouse. Create a new shortcut on your desktop using a right mouse click, and enter 'rundll32.exe user32.dll,LockWorkStation' in the location field. Give the shortcut a name you like. That's it -- just double click on it and your computer will be locked. And if that's not easy enough, Windows key + L will do the same.
4. XP hides some system software you might want to remove, such as Windows Messenger, but you can tickle it and make it disgorge everything. Using Notepad or Edit, edit the text file /windows/inf/sysoc.inf, search for the word 'hide' and remove it. You can then go to the Add or Remove Programs in the Control Panel, select Add/Remove Windows Components and there will be your prey, exposed and vulnerable.
5. For those skilled in the art of DOS batch files, XP has a number of interesting new commands. These include 'eventcreate' and 'eventtriggers' for creating and watching system events, 'typeperf' for monitoring performance of various subsystems, and 'schtasks' for handling scheduled tasks. As usual, typing the command name followed by /? will give a list of options -- they're all far too baroque to go into here.
6. XP has IP version 6 support -- the next generation of IP. Unfortunately this is more than your ISP has, so you can only experiment with this on your LAN. Type 'ipv6 install' into Run... (it's OK, it won't ruin your existing network setup) and then 'ipv6 /?' at the command line to find out more. If you don't know what IPv6 is, don't worry and don't bother.
7. You can at last get rid of tasks on the computer from the command line by using 'taskkill /pid' and the task number, or just 'tskill' and the process number. Find that out by typing 'tasklist', which will also tell you a lot about what's going on in your system.
8. XP will treat Zip files like folders, which is nice if you've got a fast machine. On slower machines, you can make XP leave zip files well alone by typing 'regsvr32 /u zipfldr.dll' at the command line. If you change your mind later, you can put things back as they were by typing 'regsvr32 zipfldr.dll'.
9. XP has ClearType -- Microsoft's anti-aliasing font display technology -- but doesn't have it enabled by default. It's well worth trying, especially if you were there for DOS and all those years of staring at a screen have given you the eyes of an astigmatic bat. To enable ClearType, right click on the desktop, select Properties, Appearance, Effects, select ClearType from the second drop-down menu and enable the selection. Expect best results on laptop displays. If you want to use ClearType on the Welcome login screen as well, set the registry entry HKEY_USERS/.DEFAULT/Control Panel/Desktop/FontSmoothingType to 2.
10. You can use Remote Assistance to help a friend who's using network address translation (NAT) on a home network, but not automatically. Get your pal to email you a Remote Assistance invitation and edit the file. Under the RCTICKET attribute will be a NAT IP address, like 192.168.1.10. Replace this with your chum's real IP address -- they can find this out by going to
CODE
www.whatismyip.com
-- and get them to make sure that they've got port 3389 open on their firewall and forwarded to the errant computer.
11. You can run a program as a different user without logging out and back in again. Right click the icon, select Run As... and enter the user name and password you want to use. This only applies for that run. The trick is particularly useful if you need to have administrative permissions to install a program, which many require. Note that you can have some fun by running programs multiple times on the same system as different users, but this can have unforeseen effects.
12. Windows XP can be very insistent about you checking for auto updates, registering a Passport, using Windows Messenger and so on. After a while, the nagging goes away, but if you feel you might slip the bonds of sanity before that point, run Regedit, go to HKEY_CURRENT_USER/Software/Microsoft/Windows/Current Version/Explorer/Advanced and create a DWORD value called EnableBalloonTips with a value of 0.
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