Description of problem:
my system is not installing any operating system i.e(windows XP,NT,2000,Linux)
only windows 98 is working.and when i run mem.exe in windows 98 its shows me 
this:
C:\WINDOWS>mem

Memory Type        Total       Used       Free
----------------  --------   --------   --------
Conventional          636K        68K       568K
Upper                   0K         0K         0K
Reserved                0K         0K         0K
Extended (XMS)     65,468K          ?   129,768K
----------------  --------   --------   --------
Total memory       66,104K          ?   130,336K

Total under 1 MB      636K        68K       568K

Total Expanded (EMS)                   64M (67,108,864 bytes)
Free Expanded (EMS)                    16M (16,777,216 bytes)

Largest executable program size       568K (582,112 bytes)
Largest free upper memory block         0K       (0 bytes)
MS-DOS is resident in the high memory area.

Version-Release number of selected component (if applicable):

i think some problem is created with my extend memeory thats why it is showing 
this question mark
How reproducible:


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Additional info: