Windows Server Performance Monitoring: Task Manager, Resource Monitor, and PerfMon Compared

When a Windows Server instance starts responding slowly, the fastest path to an answer is usually one of three built-in tools: Task Manager, Resource Monitor, or Performance Monitor (PerfMon). They overlap, but each has a distinct job. Task Manager is for quick snapshots, Resource Monitor for per-process diagnosis, and PerfMon for trend analysis over time. … Read more

Troubleshooting RDP Connection Failures: Error Codes and Fixes for Windows VPS

A Windows VPS that suddenly refuses RDP connections is rarely “the server is down”. In most ticket queues the hostname resolves, ICMP answers, port 3389 is open, and the client still fails with something like 0x904, 0x516, or a bare “An internal error has occurred”. Those codes come from three different layers — the client … Read more