W2K won't let me install SP4

[gambit678103]

I have W2KPro w/o ANY SP's. When I try to install SP4, it tells me that my
ATAPI.SYS file is in use by another program and that I need to shut down the
other program before SP4 can fully install. HELP!!!!

 

[Bob I]

install in safe mode?

 

[Ghostrider]

I have W2KPro w/o ANY SP's. When I try to install SP4, it tells me that my
ATAPI.SYS file is in use by another program and that I need to shut down the
other program before SP4 can fully install. HELP!!!!

While service packs are supposed to be cumulative, IIRC, installing
SP4 may require the atapi.sys file (or some other) from SP2. Do a
search of the Microsoft Knowledge Base or Google for more information.
Or alternately, if it is still possible, do the upgrade to SP4 (and
later) via Windows Update.