There may be many causes for the failure of some file of Windows OS, but most of the causes are as follows:
EXCH_seos.dll: Download exch_seos.dll File
EXCH_smtpctrs.dll: Download exch_smtpctrs.dll File
EXCH_snprfdll.dll: Download exch_snprfdll.dll File
extmgr.dll: Download extmgr.dll File
exts.dll: Download exts.dll File
evcreate.exe: Download evcreate.exe File
evtgprov.dll: Download evtgprov.dll File
evtrig.exe: Download evtrig.exe File
eventcreate.exe: Download eventcreate.exe File
eventtriggers.exe: Download eventtriggers.exe File
e1G5132e.sys: Download e1g5132e.sys File
EventViewer.dll: Download eventviewer.dll File
EventViewer.resources.dll: Download eventviewer.resources.dll File
EventViewer.ni.dll: Download eventviewer.ni.dll File
explorer.exe.mui: Download explorer.exe.mui File
efs.h1s: Download efs.h1s File
efsfull.h1s: Download efsfull.h1s File
errmes.h1s: Download errmes.h1s File
escalate.h1s: Download escalate.h1s File
EventLogMessages.dll: Download eventlogmessages.dll File
E1G6032E.sys: Download e1g6032e.sys File
ecache.sys: Download ecache.sys File
elxstor.sys: Download elxstor.sys File
errdev.sys: Download errdev.sys File
exfat.sys: Download exfat.sys File
elmsmc.sys: Download elmsmc.sys File
examc.sys: Download examc.sys File
e1e6032e.sys: Download e1e6032e.sys File
eFE5b32e.sys: Download efe5b32e.sys File
ESCP2RES.DLL: Download escp2res.dll File