Hi, Currently, I am running Window XP SP3, on Dell Latitude D630 and getting 3 (or may be more) different kinds of BSOD errors. BCCode : 1000000a BCP1 : 00000016 BCP2 : 0000001C BCP3 : 00000000 BCP4 : 804FA2D2 OSVer : 5_1_2600 SP : 3_0 Product : 256_1 BCCode : 1000007f BCP1 : 0000000D BCP2 : 00000000 BCP3 : 00000000 BCP4 : 00000000 OSVer : 5_1_2600 SP : 3_0 Product : 256_1 BCCode : 1000008e BCP1 : C0000005 BCP2 : A8E086A1 BCP3 : E3490278 BCP4 : 00000000 OSVer : 5_1_2600 SP : 3_0 Product : 256_1 One more error, I got, had either BCCode= ea OR ae. I started getting this BSOD problem when I was using Windows 7, about a couple of weeks ago. Unfortunately, I didn't save any of those BSOD codes, but at that time too there were more than one kind of BSOD codes that appeared. One of that BSOD screen, while using Windows 7, made mention of some .sys file, win(something).sys. Googling about this file and BSOD screen, I got to know that some system file has become corrupt. So I clean installed Windows XP SP3. However, I am still having BSOD problem, and the time of its occurrence is very random. Sometimes, the system runs flawlessly, whlie at other times, may have problem after some hours of using it or even just after the coldboot.