Windows Update error 0x800706D9: EPT_S_NOT_REGISTERED
Updated
Cleared for publishing after the automated checks on .
What the code means
There are no more endpoints available from the endpoint mapper. (System Error Codes (1700-3999))
Code facts for 0x800706D9
| Code as Windows shows it | 0x800706D9 |
|---|---|
| Type | Win32 error code |
| Symbolic name | EPT_S_NOT_REGISTERED |
| Hexadecimal, 8 digits | 0x800706D9 |
| Decimal (unsigned) | 2147944153 |
| Decimal (signed 32-bit) | -2147023143 |
| Severity | failure |
| Facility | 7 FACILITY_WIN32 |
| Windows error number inside this code | 1753 EPT_S_NOT_REGISTERED: There are no more endpoints available from the endpoint mapper. |
| Group | Windows Update errors |
Code facts: System Error Codes (1700-3999) (Microsoft Learn, CC BY 4.0), checked Nov 14, 2026.
Where this error shows up
This code shows up while Windows Update or a Windows upgrade is downloading, installing or setting up.
Applies to
Windows client, Windows Server and Azure virtual machines (as the summary of the Microsoft page says).
These steps come from a Microsoft page written for IT administrators.
4 steps to try, in order
Steps are grouped by the Microsoft page they come from. The page lists only what those pages give; other causes of 0x800706D9 are not covered. 3 steps are flagged.
If this page and Microsoft's page differ, follow Microsoft's page.
From: Troubleshoot Windows Update error 0x800706D9
Source: Troubleshoot Windows Update error 0x800706D9 (Microsoft Learn), checked Nov 14, 2026. © Microsoft, licensed under CC BY 4.0. Steps shortened and reworded by PC Driver Update.
Back up first
Written for IT administrators.
Before you troubleshoot, back up the operating system disk; the Microsoft page asks for this first.
Start the required services
Written for IT administrators.
Changes services or policyAt a command prompt run:
sc config RpcEptMapper start= auto
sc start RpcEptMapper
sc config RpcSs start= auto
sc start RpcSs
sc config MpsSvc start= auto
sc start MpsSvc
Try the update again.
Microsoft advises: Back up your personal files before you try these fixes. (Back up and restore with Windows Backup)
Check the Windows Firewall configuration
Written for IT administrators.
Changes security settingsIf the firewall service doesn't start, check its registry entry with:
reg query "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy" /s
If the key is missing or corrupted, reset the firewall service to default with:
netsh advfirewall reset
Try the update again.
Our advice: Export the current firewall policy before the reset, because netsh advfirewall reset returns it to the default settings. Microsoft's example: netsh advfirewall export "C:\folder\firewall_backup.wfw" How to: netsh advfirewall
Reregister Windows Update components
Written for IT administrators.
Changes services or policyChanges system filesRun:
net stop wuauserv
net stop cryptSvc
net stop bits
regsvr32 /s wuaueng.dll
regsvr32 /s wuaueng1.dll
regsvr32 /s wucltui.dll
regsvr32 /s wups.dll
regsvr32 /s wups2.dll
net start bits
net start cryptSvc
net start wuauserv
Restart and try again; if it still fails, contact Microsoft Support.
Microsoft advises: Back up your personal files before you try these fixes. (Back up and restore with Windows Backup)
The Microsoft page also has two steps for Azure virtual machines only; they are not listed here.
Stop and get help
If these steps do not fix the problem, or you are not sure about a step, stop and get help from Microsoft Support or from the maker of your PC. Stop at once if the data on this computer is at risk: back up your files first, or ask a professional before you go on.
Dates and review
| Automated checks | first check: ; second check: ; third check: ; fourth check: |
|---|---|
| Microsoft pages read |
|
| Review status | Cleared for publishing after the automated checks on . |