Computer Maintenance

If your keyboard is still malfunctioning once it has completely dried out then chances are it will never work properly.

Is this a question, or a quiz?

Two things to do first:

Rule one, remove ALL cards/peripherals except video if there's no on board video system.

Boot into safe mode.

If it boots and shows a video screen, then add one peripheral back at a time.

In general, simply booting into safe mode with all peripherals installed, usually allows a system to run. The device manager can then be used to check/configure/disable peripherals. Look for red "X"'s or yellow "!"s and see what's wrong there.

If using Windows or _nix, the OS should auto-detect all hardware.

Maximally, you can remove all cards, unplug all IDE devices as in CD/DVD ROM drives, floppy drives, and hard drives, and see what POST codes or errors come up.

If the FDD I/F and floppy drive are functioning, try booting with an ordinary or better yet, a diagnostic DOS boot floppy and perform basic system tests like a RAM test and tests of other parts of the system. Most systems come with diagnostic floppies or CD-ROMS.

Remove all RAM except one stick (or two if you have RDRAM)... Sometimes incompatible RAM will prevent a BOOT and putting in only one stick, or two RDRAM sticks of the exact same type can eliminate compatibility issues. You can also try individual sticks of memory from different manufacturers in case some RAM is not working with the system.

Basically remove as much hardware as possible to see if the system will POST, then add things back one at a time until it again fails to POST.

If there are still problems, clear the CMOS RAM using the motherboard jumper, if available, or if an old system without one, remove the battery for 15 seconds or so.

Check the CMOS battery. Is it dead? Even then, the system should POST and throw up an error alerting you that CMOS memory has been lost, but would still POST with all the BIOS settings lost and reverting to defaults.

Many systems, have three CMOS jumper settings: Normal, Clear CMOS, and "recovery mode". As a last resort, though very unlikely, the BIOS might be corrupt. Using this as a last resort, putting the jumper into "recovery mode" will force the system to boot from a BIOS install floppy and will replace the BIOS with a new copy. This is highly unlikely, however, to be the cause of the problem and is not recommended for troubleshooting.

If the system still fails to boot, then something major like the power supply or CPU or other motherboard component is dead.

Swapping parts would be the next step. Start with the power supply. If you have a CPU of the same model from another working computer, that can be swapped out as well.

Try to find out what the BIOS is complaining about by writing down the beeps if they occur, or on-screen errors. If you get a video screen with errors, the system is basically functioning. If you get no video and only beeps, the number of beeps will indicate a specific error which would have to be looked up in the manuals or at the manufacturer's website. If there's no beeping, drive activity, and everything is just dead when powering on, except the fans, there could be a dead CPU or other major chip, or possibly some of the power supply outputs are bad. Finally, if NOTHING is running, including fans, then definitely the power supply would be the first thing to check. The power supply voltages would have to be measured with a voltmeter and verified.

Well, its quite simple: Windows Updates.

Let me explain it,

When windows updates is activated it will check for updates at 3 o clock midnignt, because of the default settings.

You wont notice this when your pc is off. However, your pc will go on when its in hybernate or sleep mode.

Just totaly shutdown the pc to prevent this, or change the windows update settings.

For a laptop yes, it may overheat. The fans tend to be on the bottom of the laptop itself and kind of defeats the purpose of the name "laptop" because they advise you not to put on soft surfaces such as blankets or sometimes even your lap.

It sounds like there is a major fault on the mother board.

You don't say if it is a laptop or a desk top.

If it is a laptop then the problem is terminal requiring a new motherboard.

If it is a desk top, it could be that the graphics card is not plugged in properly.

With the computer off, lift the lid and try relocating any cards plugged into the motherboard's PCI slots.

a lightning strike is a surge of power. a surge protector is used so the surge protector blows up instead of your pc.

Sags and Brownouts are not my strong point, but i think its possible to get an electricity cleaner. the best tool to use, is a UPS (uninteruptable power supply).

pls give seminar topics for hacking

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i want to know the suggestion depreciation period for computers (Acer 1500 AED)

You might be using an italics font. In that case, you would need to go to the Control Panel and change it.

That happened to me one time. If you see that happening, do not worry. There is no reason to panic. It's just a simple glitch. It's harmless.

1. If you want to identify a hardware component with out opening the case.. 2. To help you identify Features of a motherboard, video card, or processor. . 3. establish benchmarks for the components in

For Laptop: open it up, checking the cable whether is lose or not: might need a technical repair if you damaged the screen, like dropping it on the floor.

For desktop: Make sure the VGA cable is not lose, its the one that connects your monitor onto your PC, if you have damage it somehow, you can get a repair or buy a new one.

It might be the resolution problem, try change the resolution to recommended or highest in screen resolution setting, this apply to desktop and laptop. On the desktop monitor some of it will contain button on the monitor, you can try adjust resolution on that.

MS-DOS, Intel 8088 CPU and UNIX

Floppy disks cannot be downloaded; they are physical devices. The data on them, however, can be downloaded, just like any other file.

You open two My Computer windows and make them small. Next, you go to your c drive in one to where the file is. In the other one go to the e drive where you want to copy the file to. click the file and hold down the left mouse button. Drag the file to your other window and drop it in the e drive.

The reason for this error is an incomplete upgrade to Real Player. When the program is uninstalled & reinstalled, the error disappears.

If you starting getting this error after attempting to install a new application or upgrade an existing one, try the following:

(1) Uninstall the application from Control Panel / Add or Remove Progams.

(2) If unable to do so from there, find the folders related to the application (do a search or check the Program Files folder) using Windows Explorer, and delete them.

(3) Reinstall the application. Make sure no other applications are running during the install. Check for a confirmation message that the program was installed successfully.

(4) Reboot computer.

(5) Attempt to reopen application. Hopefully error statement will disappear.

Another potential fix is to search the Internet for "MSVCR71.dll". You will find Websites that allow you to download this file for free.

You can disable safe mode with an application such as NoSafeMode (http://guino.home.insightbb.com/nosafemode.html).

You can add a BIOS password to prevent people from messing with the computer's settings.

You can prevent Deletion of files using of user security options present on the most recent windows versions, or also by security applications such as Fortress, etc.

no I'm pretty sure that it's the drive that saves all your work and that has all of your file

In order to move your taskbar to different sides of the screen, first right-click on the task bar and click "Lock the Taskbar". By default, Windows will automatically lock the taskbar in place to prevent it from accidentally being dragged. Next click and drag it in the direction that you want. When you have it positioned, right click and select "Lock the Taskbar" to keep it where you have it set.

What is the file, is the primary information :D

Make a batch file.

Open up notepad, type in the commands just like you would if you had a C:\prompt and choose "save as." When you save it, remove the .txt extension & use .bat instead.

Batch files can be executed just like an .exe, any commands in the batch file are put to a command prompt & executed. So just put the batch file (or a shortcut to it) in programs/startup in your start menu & youre done!