Any computer guru in the house, please i need your help, i just downgraded my laptop from window7 to xp and after that whenever i power on my laptop after two to five minute it will display a blue screen that contain error message

SOURCE: downgrade dell 1370 (13z) OS from W7 to XP

This can be difficult with some computers. Drivers may not be available.
Is this a Dell Inspiron 1370 with Intel chipset?
There are SOME drivers available for XP with this computer. Please check each driver where it says 'Verify Operating system'. make sure you have ALL the drivers you need, decompressed & copied to a CD, DVD or USB stick, BEFORE you attempt to load XP. Save all your data first!

Here is the Dell link for available drivers:
http://search.dell.com/results.aspx?spf=Inspiron&ssysid=inspiron1370&ssysn=1370&s=gen&c=us&l=en&cs=&ec=&ira=False&cat=sup&subcat=dyd&rf=all&evl=&nk=f&k=Dell+Inspiron+1370&p=1&nf=&rpp=12&sort=K&~srd=False&ipsys=False&advsrch=False&p=1

(Hint: Paste the full link into notepad, make it one line, copy again and paste into your browser)

SOURCE: I downgraded my Toshiba L650-15g

Hi there!
There are two possible driver for your Toshiba L650 sound device. One is from ATI and the other one is from Conexant. (click on the name to download the driver compatible)
Try installing the ATI first. If that doesn't work, then install the one from Conexant.
Hope this helps.