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Your device cannot run multiple programs at once or the device blue screens.
Damaged RAM Stick
Your RAM stick may have initially had some fault that passed through quality control and worsened over time. Open the RAM casing and see if the stick is altered in any way. If it is, then you may need to replace the RAM stick.
Overheating RAM Stick
Excessive heat can cause the RAM stick to fail. Heat from adjacent parts in the device may seep into the RAM casing, causing damage. If your device is running slow and feels hot, move it to a cooler area that in well-insulated to prevent permanent damage.
Damaged Disk Drive
When you place something in the disk drive, the drive either does not read it or does nothing at all.
Failure to Read Disks
The CDs you are trying to read may be damaged or dirty. Test at least two to three different CDs, and if the problem persists, the drive itself may have failed. The disk drive will have to be replaced if this is the problem.
Dusty Disk Drive
The disk drive on your device may be clogged with dust or other debris, which could prohibit it from properly reading CDs. Clean out the drive carefully with a compressed air duster, ensuring not to damage the delicate interior of the drive itself.
The battery does not charge even when plugged up to the charger.
Battery Life Span
If the laptop is working fine while it is plugged then the battery is the issue. Most batteries have a short life span and often lose their capacity to hold a charge within two years. So it would not be uncommon for this issue. To improve the life span of the battery, in this case, a lithium-ion battery has the best life span when the charge is kept as high as possible. Which debunks the myth of letting the computer die and then charging it to keep the battery efficient.
The removable battery underneath the device may be physically damaged/broken. Turn the computer over and remove the battery using the switch next to it. See if there are any holes or obvious fractures on the battery. If there are, insert a new battery into the device.
Hard Drive Malfunction
Dying Hard Drive
A hard drive is mostly likely dying if it begins to makes grinding, whirring sounds. This will inevitably lead to a physical hard drive failure, and you will have to replace the hard drive.
This occurs when a hard drive's file structure is damaged rather than the actual hardware. This can occur through human errors, malware infections, and corrupted files. A hard drive recovery service can fix this problem, that is, if the device actually boots up. If you cannot boot the device normally, try booting it in safe mode to get to the desktop and run a hard drive recovery service.
Keyboard/Keys Not Responding
Keys Are Stuck In Place
If a key cannot be pressed, then something may be underneath the key. Remove the key and ensure there is nothing underneath it, cleaning the area if needed. Put the key back into place afterwards.
If the entire keyboard is unresponsive, then you may need to replace each individual key.