If you encounter btkrnl.sys error code on your computer in Windows XP Safe Mode, it is recommended that you familiarize yourself with these recovery methods.
Quick and Easy PC Repair
SYS files such as mup. sys are categorized as Win64 EXE (driver) files. As a file for several UNC vendor drivers, it was created by Microsoft for use on the Microsoft® Windows® operating system. Mup. sys was first developed on 10/25/2001 along with the Windows XP and Windows XP operating systems.
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