Or display the MSLLDP descriptor it give me an error and says "Access Denied". When I entered it, it took the first part (first line) and rejected everything thereafter. Thinking it didn't take, I reentered it "Exactly" as shown in the descriptionĪbove, that is, instead of the descriptor being all on one line, I put the first A descriptor on a second line as shown. When I displayed it again, using the c mslldp command, it looked identical to my original (should I have rebooted first?). MSLLDP descriptor and issued the sc sdset command. I performed the display functions and saved them before setting as described. I am having this same problem and attempted this MSLLDP fix and I think I may have damaged the security descriptor beyond my ability to repair. And backup the old descriptor just in case !!!
Do not copy my SDDL descriptions, just in case. !!! Do not forget to use your security descriptor for MSLLDP driver since I guess there can be some rare cases when its different for your machine. Run you backup app, the error is gone for my Home Server backup. R NT AUTHORITY\SERVICE accesschk.exe -c mslldpĦ. The original security descriptor looked like below: It should be modified, I used SC.EXE and Sysinternals' ACCESSCHK.EXE to fix it. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MsLldp\Security The binary security descriptor for the driver is located here: Turned out it fails because MSLLDP driver's security permissions do not allow NETWORK_SERVICE to access the driver. , The function fails on MSLLDP driver with "Access Denied" Its config registry key is HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MsLldpĭuring backup a VSS process running under NETWORK_SERVICE account calls cryptcatsvc!CSystemWriter::AddLegacyDriverFiles(), which enumerates all the drivers and tries opening each one of them.
"Microsoft Link-Layer Discovery Protocol" binary is \Windows\system32\DRIVERS\mslldp.sys Seems we finally have a solution thanks to user szz743 in
The VSS System Writer is listed and is error free.Ĭryptographic Services failed while processing the OnIdentity() call in the System Writer Object.ĪddLegacyDriverFiles: Unable to back up image of binary Microsoft Link-Layer Discovery Protocol. I can trigger this error by manually creating a restore point invoking VSS. Updates to 8.1 as of 17 October installedĮvent viewer still shows newly triggered Error(s) CAPI2 event id 513. Running Windows 8.1 PRO RTM 圆4 upgraded from Win 8 PRO.
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