Prevent your computer from crashing by regular maintenance. One thing you can do to clear disk space is to run the disk cleanup option .
Just follow these easy steps!

Open My Computer.

Right-click on the hard disk drive that you want to recover disk space. Let’s use the C: drive as an example, since it’s the most “abused” drive anyway.

Next, click properties. You will the General tab/ Just click the button that says Disk Cleanup. It is next to the pie chart. Windows will now scan the computer for all files available to clean up.

Last, when already in the Disk Cleanup window, check all of the boxes that are taking disk space EXCEPT “compress old files“.

Click Ok and then Yes if you wish to proceed.

One thing to remember when performing a disk cleanup, there is an option to compress old files in your hard drive. It is strongly recommended that you don’t. Besides, Windows 2000 and Windows XP keep the files that are necessary to uninstall the updates (which could accumulate up to 1 gig of wasted disk space) that have been installed on your computer.

So the electrical connection is not the problem. Let’s move on to the Power Supply Unit or PSU (unless your PC utilizes a UPS instead. This will be covered in the next post). The PSU is the most common cause of self-rebooting. The best way to troubleshoot this is to replace the PSU (TIP: When replacing a motherboard, also replace the PSU). There are good quality PSU out there and they come in relatively cheap prices. Do not attempt to replace it yourself if you have no idea on how to do it. Better take your PC to a repair shop.

Source: Answers that Work

Once in a while, we experience connectivity problem — say, we cannot connect through the web or sending and receiving email takes time. We assume that this problem is because of system’s connection to the Internet has somehow failed. When this occurs, you can usually determine the exact nature or location of the problem with a series of ping tests.

Oh yeah, a problem that always occurs. Don’t panic, my dear friend. If a message stating this error pops on your screen, then it means that you have one of these problems:

Your Integrated Drive Electronics (IDE) cable is loosely connected. Check the IDE cable and make sure if both ends are fully plugged in.

Another problem may be that the IDE cable is reversed. Yes, this can happen. Check if one or both ribbon cables are actually connected in the right way. What right way? Pin 1 should align with Pin 1 on the drive. Just look for the side that is incorrect and flip it around.

If it’s not the IDE cable, then it may be your power supply. Check if you have power to the floppy drive.

Another variation of the problem is that the drive is probably attached to the wrong side of the twist. The twist reverses voltages and is found between the two drive connectors of IDE cables. You can swap the floppy drive by enabling it in the BIO. It is simpler though to just attach the drive to the other plug.

This gadget convert’s your regular household current into low DC voltage used by the computer. When this component fails, there is simply no activity going on with your computer. Always inspect the Power Supply for any damage. Double-Check all connections and don’t permit the simple pleasure of turning on your PC and everything works just fine.

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One main problem that you face is by re-booting the computer without any warning. All information is lost and it seems as though this happens at the worst possible time. You need to repeat some workloads as well. Booting errors when the computer first start’s up is another indicator of this component going on the blink.

The way to solve this in Windows XP and 2000 is to right-click the Windows task bar and click Task Manager on the menu. Next, pick the Processes tab in the application window and click the list box column head labeled Image Name to arrange the applications running. Locate the application you want to open. Right click the offending applications and choose End Process, then click OK. Do this again until all programs close. Close the Task Manager and begin the application once more.

So you may have added a stick of RAM and then suddenly your PC seemingly crashes down: boot routines fail and there are sudden shutdowns. This can mean you have a case of bad memory upgrade.

Also, new addition to your memory may not be compatible with the existing one. In this case try to boot your PC and enter the memory settings. From there you can reboot again and wait for results that will show how the two memory sticks react to each other.

You may invest on basic items such as screwdrivers for use in attaching or removing components; needle-nose pliers; tweezers for getting jumpers and hard to reach items; lint free cloth for cleaning and wiping parts; compressed air clears gummed up fans and vents to be used in reviving blinded optical drives and for data connections; electrical contact cleaner solution to improve electrical conductivity and a hand-held vacuum for sucking dirt, hair and other embedded particles.