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Interestingly, it's also a Dell Inspirion 1545 and the drive is a Model: ST9500420AS. I get this exact same Invalid Opcode error running the latest version of SeaTools for Dos, which I was also told to run by SeaTools for Windows after it failed the Long test. There seems to be no consistency, and there are no minidumps, and the only errors that show up in 'Event Viewer' say that 'this usually points to a hardware problem', I have run Memtest86, and it came back without errors. Then when in windows, again sometimes everything works fine, and sometimes things don't. Sometimes it boots fine, others it needs to do a repair prior to booting. The reason I want to run SeaTools Utility is because it has been having problems booting. The system is Vista HP 32 bit, on a Dell Inspiron 1545. Yes it boots from the DVD drive, It begins by 'Starting BCDW.ok.' then just some GNU stuff, it gets to the point of 'Loading XMS driver' then this error code:
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