When you try to start your computer from the Windows XP CD-ROM, you may receive the following error message:
The following file is corrupted: toside.sys
This issue may occur if one or more of the random access memory (RAM) modules that are installed in your computer is damaged or if the RAM configuration is incompatible.
To troubleshoot and resolve this issue, remove the memory modules that are installed in your computer, but leave enough RAM to start your computer and run Windows, and then restart your computer.
For additional information about the amount of RAM you must have to run Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
314865 System Requirements for Windows XP Operating Systems
If the issue is not resolved, remove a different memory module. This procedure may require you to restart your computer several times to identify the specific memory module that is not working correctly.
For information about how to add and remove RAM to the computer, contact the manufacturer of the computer, or view the documentation that is included with your computer.
For additional information about how to troubleshoot a similar "STOP 0x00000074" error message, click the article number below to view the article in the Microsoft Knowledge Base:
283433 Cannot Start Windows XP After You Install Windows 2000
For information about how to contact your hardware manufacturer, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:
65416 Hardware and Software Third-Party Vendor Contact List, A-K
60781 Hardware and Software Third-Party Vendor Contact List, L-P
60782 Hardware and Software Third-Party Vendor Contact List, Q-Z
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.