Win32 service and RPC failures require context. Error 1067 indicates a service process ended unexpectedly, 1068 points to a failed dependency, and 1722 means an RPC server was unavailable. These codes are not interchangeable and none alone justifies deleting service registry keys.
Which devices and symptoms this guide covers
For administrators diagnosing Windows service failures, network services and domain-related RPC errors—not consumer application alerts that only happen to use the same number.
- A Windows service starts then exits with 1067.
- A dependent service returns 1068 before it starts.
- Remote management or directory operations return RPC 1722.
Why the error occurs
Similar screens can have different underlying causes. The following distinctions help identify the failing layer before you alter software, accounts or network configuration.
- A service executable fails due to configuration, files or permissions.
- A required service is stopped, missing or failing itself.
- RPC transport cannot reach a live endpoint because of DNS, routing, firewall or unavailable service.
Before you change settings
Do not disable security controls, modify domain-wide firewall policy, or edit registry service keys without change approval. Record service name, time, host and maintenance rollback.
Record the exact code or symptom, product model, version and time. Change one variable at a time and verify the original failure after each action; this makes the result reproducible and leaves a clear rollback path.
Step-by-Step Troubleshooting
Start with the reversible Beginner actions, then choose Advanced only when you have the required authorization and diagnostic experience. These steps are editable in PRBLEM Center.
Step-by-Step Troubleshooting
Work through the low-risk checks in order. Compare the result after each action and preserve a rollback path.
Identify exact code and service
Record the Win32 integer, symbolic name and service executable. Codes may be wrapped by different products; read the underlying event.
Review Event Viewer
Check System and Application logs around the first failure for a service-specific explanation and correlated dependency events.
Inspect service dependencies
Use Services properties to identify required services. Find which dependency failed earliest, not merely the last error 1068.
Check service identity
Confirm the service account has necessary access and that passwords or managed credentials have not expired.
Validate configuration and resources
Review product configuration, disk space and dependent application logs. Avoid forcing repeated restarts that could corrupt work.
For RPC, test DNS and reachability
Resolve destination name and verify relevant service is running. Ask network admin for allowed connectivity testing; do not assume a single fixed port covers all RPC calls.
Restart only with approval
After fixing a specific cause, restart the affected service during an appropriate window and verify the original operation.
Collect controlled service diagnostics
Capture sanitized startup logs, process exit codes, dependencies and recent configuration diffs. Avoid public sharing of machine names or credentials.
Review RPC endpoint path
For error 1722 check DNS, routing, endpoint mapper and dynamic RPC policy under your organization’s supported configuration; document which layer fails.
Perform rollback-driven changes
Apply only one controlled change at a time, test a repeatable workload and restore the baseline if the change has no measurable effect.
How to interpret your results
The goal is not simply to make the warning disappear once. Compare what changed with the following decision table so you know what to test or escalate next.
| What you observe | Likely cause | Next safe action |
|---|---|---|
| 1067 immediately after start | Service process failure | Review application log and executable dependencies. |
| 1068 after other service stops | Dependency chain | Fix earliest failing dependency. |
| 1722 on remote operations | RPC transport or endpoint path | Test DNS, routing and allowed RPC connectivity. |
Common mistakes to avoid
- Restarting every service without identifying the first failure.
- Granting overly broad service-account rights to bypass error 1069.
- Opening wide firewall ranges indiscriminately after an RPC timeout.
How to verify the fix
- The target service remains healthy under its intended account.
- Dependent features complete successfully.
- Remote RPC operation works across the approved network path and logs show no recurring failure.
Diagnostic decisions that save time
What 1067 really says. The Service Control Manager is reporting an unexpected process termination, not the underlying application-specific reason. Read the service's own logs and Event Viewer near the timestamp. Crashes due to malformed configuration, credentials, executable dependencies or storage availability can all surface as 1067.
Dependencies form a chain. Error 1068 tells you a prerequisite service failed, but the visibly failing service might not be the root cause. Identify the first failing dependency in time. Start with service-specific documentation; manually modifying protected system services can make recovery harder than the original error.
RPC 1722 is a transport clue. It describes an unavailable RPC server in the attempted operation. That might reflect DNS resolution, target reachability, endpoint negotiation, authorization or a service not listening. Windows environments can use multiple RPC endpoint mechanisms; opening a broad firewall range without understanding the architecture is unsafe and may not fix the issue.
When to contact support
If the issue remains after the safe checks, collect a short technical report with the exact error, time, model, system version, which tests changed the result and which data has been backed up. Do not publish passwords, tokens, serial numbers or personal identifiers. Stop at the point where the next step would require unapproved access, invasive repair, broad security changes or irreversible data loss.
Official or primary reference
Microsoft Learn: Win32 service codes 1000–1299. Reference procedures can change after updates; review the current vendor instructions before following a version-specific path.