Your Windows XP CD-ROM is scratched, smudged, or dirty. Clean the Windows XP CD-ROM with a soft cloth, insert it into the CD-ROM drive, and then click OK.
Your CD-ROM drive is not working correctly or the CD-ROM might be vibrating too much for the laser to accurately read the data. For more information about this problem, consult your hardware documentation, or contact the CD-ROM manufacturer.
If you are using multiple CD-ROM drives, your computer may be trying to locate files on the wrong drive. If your hardware has a feature to disable CD-ROM drives that are not being used, disable the CD-ROM drives that you are not using.
Your computer is over-clocked. Because over-clocking is very memory-intensive, decoding errors may occur when you extract files from your Windows XP CD-ROM.
Try to use the default clock timings for your motherboard and processor. For more information about how to do this, consult your hardware documentation or contact the motherboard manufacturer.
Your computer has damaged or mismatched random access memory (RAM) or cache memory. For example, you might be using a combination of extended data out (EDO) and non-EDO RAM, or different RAM speeds.
Decoding errors can occur even if Windows appears to be running correctly because of the additional stress that is put on your computer when Windows tries to extract files and access the hard disk.
To determine how to make your computer cache memory unavailable during Setup, see your hardware documentation or contact your hardware manufacturer.
Your computer has Ultra direct memory access (DMA) turned on in the CMOS settings, and the data is moving too quickly.
Change from DMA mode to Processor Input/Output (PIO) mode to lower your data transfer rate. If this does not resolve the problem, lower your PIO mode settings. The higher your PIO mode settings are, the faster your data transfer is.
You are using a third-party memory manager.
There is a virus on your computer.
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