- Not enough hard drive space.
- Left over programs and bad files.
- Data Corruption.
- Missing Windows updates or outdated drivers.
- Computer is overheating.
- Corrupt OS.
- Bad Hardware.
- Determining available hard drive space.
- Regaining computer hard drive space.
- Run Scan Disk or something equivalent to verify there is nothing physically wrong with the computer hard drive.
- Run Defrag to help ensure that data is arranged in the best possible order.
- Verify that the Device Manager has no conflicts. If any exist resolve these issues as they could be the cause of your problem.
- Make sure you have all the latest Windows updates installed in the computer.
- If you are on the Internet when your computer is slow also make sure all browser plugins are up-to-date.
- What temperature should my processor be running at?
- Steps on cleaning your computer.
- Determining how much RAM is installed and available.
(Finally, if your computer continues to be slow after going over each of the above recommendations it's possible that your computer is experiencing a more serious hardware related issue such as a failing component in the computer. This could be a failing or bad hard drive, CPU, RAM, motherboard, or other component.Hardware issues)