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The first thing I would try is replacing the atapi.sys file in the C:\WINDOWS\SYSTEM32\DRIVER<wbr />S folder with a known good atapi.sys file.
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The first thing I would try is replacing the atapi.sys file in the C:\WINDOWS\SYSTEM32\DRIVERS folder with a known good atapi.sys file.

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I can't even get it to boot into safe mode or the last known good configuration, keeps going to the blue screen.
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I can't even get it to boot into safe mode or the last known good configuration, keeps going to the blue screen.

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I don't have either of those boot disks. &nbsp;I can try to slave it. &nbsp;thanks for the help!
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I don't have either of those boot disks.  I can try to slave it.  thanks for the help!

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While you have it connected to another computer run virus and other malware scans on it.
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While you have it connected to another computer run virus and other malware scans on it.

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It worked as a slave, copied the atapi.sys file over and now it will boot.<br />
will run virus and other malware scans, THanks!
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It worked as a slave, copied the atapi.sys file over and now it will boot.
will run virus and other malware scans, THanks!

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i have a dell precision m90 with windows xp. &nbsp;i am getting the following blue screen error:<br />
stop: 0x00000050....atapi.sys address B9F21797 BASE AT B9F0B000 DATESTAMP 4802539D.<br />
also may have dowloaded rootkit virus because this error started after i clicked on a a link in an email...any suggestions?
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i have a dell precision m90 with windows xp.  i am getting the following blue screen error:
stop: 0x00000050....atapi.sys address B9F21797 BASE AT B9F0B000 DATESTAMP 4802539D.
also may have dowloaded rootkit virus because this error started after i clicked on a a link in an email...any suggestions?

atapi.sys blue screen

A laptop or notebook is a portable personal computer with a clamshell form factor, suitable for mobile use. Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, there is often no longer any difference. Laptops are commonly used in a variety of settings, such as at work, in education, and for personal multimedia. A laptop combines the components, inputs, outputs and capabilities of a desktop computer, including the display screen, speakers, a keyboard, and pointing devices (such as a touchpad or trackpad) into a single unit. The device can be powered either from a rechargeable battery or by mains electricity from an AC adapter.