Problem with NLM and DHCP Service with installed KB2770917

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hi,

i have odd problem, , 1 one installed server. 
windows 2012 vm exchange 2013. 
had powerloss seems crashed files. chkdsk fixed quite stuff. 

i nailed down dhcpcore.dll, corrupt , nlm , dhcp service can't started (with error not valid file). 
working others 2 services. 

but noticed - removing kb2770917 fixes error, installing again (via windows update or manually) , 2 services not able start. 

i tried sfs /scannow can't repair files, dhcpcore.dll. referred kb2770917, gave shot remove , happy working again, don't understand why installing again makes not work anymore. should fix file corruption, shouldn't it?

, dism /online /cleanup-image /restorehealth stopped error: 0x80240021 didn't help. 

when checking dhcpcore.dll - has same size , date on other servers. it's kinda weird, sfs tells it's not ok. 

any thoughts how fix this? don't kb removed, our other servers have aswell without problems. 

thanks
patrick

 

hi,

thanks answer. hdcpcore.dll protected file can't take on ownership. wanted try first. 
anyway - wanted install cu1 last weekend on machine failed miserably, , believe due problem. 

i wouldn't update problem microsoft. server had hardware troubles caused power outage, , seems virtual machine took harm, file system had lots , lots of errors. believe root cause (months back) troubles. 

anyway - exchange installed on machine, , exchange has wonderful "lost server" recovery option, went ahead , did complete new setup of server , exchange replace existing vm. solved problems. because after cu1 update, going snapshot before doing update, exchange had troubles (most  due ad changes didn't want revert back). 

thanks
patrick




Windows Server  >  Windows Server 2012 General



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