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HP probook 450 GS , have  a redscreen error 945  that was caused from an interupted recovery. says unable to find or derive USWT64PR-S fom the base OS .   Last BTODir: c:\bto \preos.init   Last BTOScript: c:\btos\preos.init\Export_Baseimage.bto   then please press eithere Ctrl+alt+c ..........have already tried disconecting everything  except screen mouse and keybord .and also a bios update form the starup menu...PLEASE help

 

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