If your computer is running slow, the cause can be one or more of the following:
- Virus/Spyware/Malware infection
- Your applications needs have outpaced the amount of memory you have available.
- Your hard drive is too full.
The operating system and applications running on your computer require a scratch pad in order to function efficiently. That means at least 15% of the total capacity of your hard drive must be free to act as a scratch pad. In other words, your hard drive is totally full if 85% of your hard drive is being used.
To check to see how much free space you have, do the following:
- On a windows system, double click on My Computer, right mouse click on your hard drive (typically labeled "c:") and select properties.
- On Mac OS, select Get Info from the pull down menu associated with your hard drive.
- Delete files you do not need such as documents or photos. Do not delete files you do not recognize such as application files.
- Uninstall applications you no longer use.
- In windows, defragment your hard drive.
- Moving your photos or iTunes library to an external hard drive can free up an enormous amount of disk space. Once you have verified the copy of your photos or iTunes library is complete, it should be save to delete those files from your computer. Associating your newly moved iTunes library with the iTunes applications is a little more complex than just moving files. Please refer to the Apple website for more help. http://support.apple.com/kb/HT1449
- If you have tried all of this options and you are still at less than the magical 15% free mark, it might be time to consider a newer computer with a larger hard drive or installing a larger hard drive into your current computer and re-building your system. Neither of these options should be taken lightly. Both of these options are best left to a professional.