i have win 95 installed and when i try to install win98 it tells me that i cannot do so with the version that i have and need a win 98 upgrade instead - error su0168 please help on what and how to do?

Warning SU0168 Your computer already has an operating system installed, which cannot be upgraded by this version of Setup. Please obtain the Windows 95 (or Windows 98) Upgrade. For additional information about this error message, click the article number below to view the article in the Microsoft Knowledge Base: Q225252 Err Msg: Your Computer Already Has an Operating System

Err Msg: Your Computer Already Has an Operating System... -------------------------------------------------------------------------------- The information in this article applies to: Microsoft Windows 98 -------------------------------------------------------------------------------- SYMPTOMS When you try to upgrade your Microsoft Windows 95-based computer to Windows 98, you may receive the following error message: Warning SU0168 Your computer already has an operating system installed, which cannot be upgraded by this version of Setup. Please obtain the Windows 98 Upgrade. CAUSE This issue can occur for either of the following reasons: An incorrect version of the Setupx.dll file is currently loaded into memory. Your installation media (CD-ROM or floppy disk) may be damaged. RESOLUTION To resolve this issue: Click Start, click Shutdown, click Restart the computer in MS-DOS mode, and then click OK. At the command prompt, type the following commands, pressing ENTER after each command: cd system ren setupx.dll setupx.ol1 ren setupx.w95 setupx.ol2 NOTE: If the Setupx.w95 file is missing, extract a new copy of the Setupx.dll file from the current operating system's installation media to the Windows\System folder. For information about how to extract files, please see the following article in the Microsoft Knowledge Base: Q129605 How to Extract Original Compressed Windows Files Type exit, and then press ENTER. Click Start, click Run, type cdromdriveletter:\win98\setup.exe, and then click OK. Damaged Installation Media If you suspect that your installation media is damaged, contact the Microsoft Order Desk at 800-360-7561 Monday-Friday, 5:00 A.M. to 7:00 P.M. PST.

Hello, Please go through the link given below : http://support.microsoft.com/support/kb/articles/q129/9/71.asp You will get all required details. Hope this helps you. Regards, Sherlock. Qsupport.com