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Windows xp dose not install after windows 7

Last response: in Windows XP
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October 14, 2012 4:46:39 AM

Hi ...i was using windows 7 in my pc .since it was not working well i planned to change OS to windows xp sp-3 i inserted windows xp bootable cd and started install xp and very first process to all file copy done without error after all file copied it restart once then the problenm occur as my pc restarted it says disk read error ( no harddisk was showing at all )i tried many times and checked my hard disc to another pc too it was was working well but when i go to install xp it dose not detected after restart .and i checked it again with windows 7 installation it was done without error and working fine now can any one please tell why there was disk read error after restart when i go to install windows xp . what shud i do to avoid this error .
thanx in advance .
my pc configuration:- DUAL CORE 3.0,RAM- 1gb, 250 gb hard disk .
a b $ Windows 7
October 14, 2012 7:17:27 AM


Hello and welcome to Tom's Hardware Forums.

Go into your BIOS and hunt down the AHCI setting and change it to IDE. That should allow XP to find the drive but I can't think how W7 can see it when XP can't.


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October 14, 2012 1:34:39 PM

thanx a lot saga for replying i just check n come again .
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October 24, 2012 5:58:25 AM

Saga Lout said:

Hello and welcome to Tom's Hardware Forums.

Go into your BIOS and hunt down the AHCI setting and change it to IDE. That should allow XP to find the drive but I can't think how W7 can see it when XP can't.




Hi saga i checked all BIOS setting but i coulld not find AHCI setting niether i could not find any ahci type setting which i could change to IDE is ther any other setting shoud i change plz help .
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a b $ Windows 7
October 24, 2012 6:41:28 AM

pkardam said:
Hi saga i checked all BIOS setting but i coulld not find AHCI setting niether i could not find any ahci type setting which i could change to IDE is ther any other setting shoud i change plz help .





I can only suggest installing it again in case the boot manager landed on a bad sector of the disk. When it worked in another system, did you run Checkdisk? Try putting in the other computer, bring up a Command Prompt and type
chkdsk X: /r
including the spaces, where X is the drive letter allocated to that disk. That will find and fix any bad sectors or clusters of sectors in a five stage process.


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October 24, 2012 6:43:38 AM

Hi brother windows 7 is upgrade of windows xp you cant downgrade your windows for that you have to delete your partition where you install windows 7 and than again create partition format it and install xp in it. This method works for me i think it will work for you to.
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October 24, 2012 1:38:14 PM

simonhook said:
Hi brother windows 7 is upgrade of windows xp you cant downgrade your windows for that you have to delete your partition where you install windows 7 and than again create partition format it and install xp in it. This method works for me i think it will work for you to.



ok simon ill try this too. thanx
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