Commercial polishing compounds in liquid form can be used to polish off lightly scratched disks but do it only in the affected area to see if it works. Use alcohol to remove the glare caused by the cleaner before sticking it into the drive. If that still doesn’t work, the scratch is so deep that there is no turning back and you’d have to go to a friend’s house or buy another copy for your purposes. Good luck and remember, keep all important disks stored in a safe place where they would be easily accessible for future use. If you need drivers, you could search for the in the manufacturer’s site or in the many driver sites such as driversguide.com and others.

Obtain some alcohol and wet a lint-free piece of cloth (special CD cleaning cloths are available that pick up dirt and cleans without solvents) try to polish the CD from the inner part towards the outer diameter. Scratches that are circular will diffuse further the laser as it tries to read the disk so do it slowly so no new ones are created. If you notice scratches from what you’re doing stop and replace the cloth (a fresh cotton ball would also do). Once all the grime and dirt is removed, try reading it on the PC if the cleaning will do. Commercial coatings that have a thin plastic layer applied to the data layer is available but they still sometimes fail.

There are a lot of instances when we find ourselves looking for a driver or software installation cd that is needed to restore some function you have accidentally removed or uninstalled. Sometimes, they just seem to be hidden so good they defy all searching efforts but sometimes they are right in front of you but with tons of scratches due to your daughter playing with it as you accidentally left in on the computer table. These colorful disks are quite attractive to kids and will be dealt with when seen. Unfortunately, scratches that are deep enough to bend the laser can render a disk useless but shallow ones can be polished off. A warning though, this should only be tried as a last resort for this may also crack the disk or ruin it further.

Some boards may simply have a two-pin configuration which if shorted can remove the errant password. Others motherboards require a few minutes for the BIOS to re-set and some require you to power the system up, then shutdown in order to return the jumper block into its previous position. After this, you would have to re-configure the BIOS to it’s previous settings so it would be a nifty idea to have a copy of these in a safe place. You can always have the manual to get the best optimal settings which would work for your system should you have a need to. The automatic settings that are built into the BIOS are not always the best setting to use but it will get you up and running in no time. Take time to understand each and every setting that you encounter (having the manual by your side makes it easier) and some boards even have descriptors which tells you which does what and what the default settings are.

A manual would be great and better for it eliminates mistakes which could not solve the problem at all and worse send you off buying a new board due to a short you created when you hastily did the operation. Boards come in several versions from several manufacturers, and if you’re like me who sticks to a select group of manufacturers, chances are they will have the overall same labels that allow easy understanding of the board even without the manual. If the reset pins come in the form of a three pronged arrangement, then there should be a jumper that shorts out two of them which in it’s current state would be the normal setting, switch the pins using the jumper and short the pins labeled reset, wait for a few minutes for the bois to reset then return the pins to the normal position. Some boards have labes some don’t and have numbers that have to be referenced with the manual.

First, if you can get hold of nifty utilities from trusted sites of the internet, then that would be easier but it can sometimes corrupt the bios of the system as it forces a program to open the said part of your computer system so be cautious and read all recommendations and instructions in the readme file so you don’t cause further problems.
If you’re in a hurry and don’t have a second computer to do a search, you can always consult the motherboard’s manual or simply look at the board for any pins that are labeled BIOS reset/normal. This is a failsafe mechanism which is built in by manufacturers into their boards to allow use of a locked system as yours.

If you by chance got yourself a good deal on a second-hand computer that works just right and is affordable enough o allow you to upgrade some parts then you indeed got a good deal. As you get home, you setup your prize and power-up only to find that the system is locked down by a password. A boot password or worse a system password can prevent access to the contents of the hard drive or the system itself leaving you stranded in the boot-up menu. Don’t fret, for there are ways to get around the problem and these work almost all of the time in getting you up and running in no time at all.

Some motherboards are so sensitive to cooling that no fans connected to the on-board fan connectors would prevent power-up to avoid ruining the processor (this would be the case if you were using externally powered or special/exotic cooling systems) try plugging in a fan or two to see if it works. The worst case is to get the lights and fans working but still there are no beeps, display or other signs of life for it may be a signal of a dead board or power supply.
If your bare systems now functions, you can then add your components one at a time so you can continue to eliminate any problem device. The prices of computer parts have indeed gone down so much that they are affordable to most. If one does not want to spend all the time tinkering and wondering what is wrong then a trip to the computer repair shop would be an easier alternative.