How to Check Server Uptime on Windows Server

Checking server uptime on Windows Server helps administrators monitor system stability, detect unexpected reboots, and track how long the server has been running without interruption.

Many administrators regularly monitor uptime on Windows VPS servers to identify crashes, maintenance events, or performance issues affecting hosted applications and remote services.

Step 1: Check Server Uptime Using Task Manager

Open Task Manager using the following shortcut:

CTRL + SHIFT + ESC

Navigate to:

Performance → CPU

Locate the following field:

Up time

This shows how long the Windows Server system has been running since the last reboot.

Step 2: Check Uptime Using Command Prompt

Open Command Prompt as Administrator.

Run the following command:

systeminfo | find "System Boot Time"

Example output:

System Boot Time: 5/15/2026, 10:42:31 AM

This displays the exact time the server last started.

Step 3: Check Uptime Using PowerShell

Open PowerShell as Administrator.

Run:

(get-date) - (gcim Win32_OperatingSystem).LastBootUpTime

Example output:

Days : 5 Hours : 12 Minutes : 18

This command shows the current uptime duration in days, hours, and minutes.

Step 4: Check Last Reboot Event

Open Event Viewer:

eventvwr.msc

Navigate to:

Windows Logs → System

Look for event IDs related to system startup and shutdown activity.

Step 5: Check Uptime with WMIC

Open Command Prompt and run:

wmic os get lastbootuptime

Example output:

20260515104231.500000+000

This value represents the exact last boot timestamp.

Step 6: Restart the Server if Needed

If the uptime is unusually long or the server becomes unstable, a restart may help apply updates and clear temporary system issues.

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Step 7: Monitor Uptime Regularly

Regular uptime monitoring helps detect:

• Unexpected crashes
• Failed updates
• Power interruptions
• Performance degradation

Checking uptime on Windows Server provides useful insight into system stability and helps administrators maintain reliable VPS environments and hosted services.