Fix: Service Installed But Won't Start (`services.msc`)

Resolving Windows Service Error 1053, Error 5 Access Denied, and missing permissions.

Sentinel Operations Team

4 min read

Updated August 28, 2026

v3.2

If the SentinelAgent service refuses to start in Windows `services.msc` or gives Error 1053, follow these steps to verify file integrity and permissions.

Repair-Service.ps1

1# 1. Confirm config file exists:
2Test-Path "C:\Program Files\Sentinel\config\sentinel-agent.toml"
3 
4# 2. If missing, copy sample config:
5Copy-Item "C:\Program Files\Sentinel\sentinel-agent.toml" "C:\Program Files\Sentinel\config\sentinel-agent.toml" -Force
6 
7# 3. Cleanly re-register service:
8cd "C:\Program Files\Sentinel"
9.\agent-service.exe uninstall
10.\agent-service.exe install
11.\agent-service.exe start

Tags:#Service Error#Error 1053#Permissions#AGENT-1004

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