How can I tell when Windows was installed on a computer?

Updated: 12/31/2020 past Calculator Hope

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At that place are a few ways to determine when the version of Windows you are currently using was installed on the estimator. Beneath is a listing of each of the ways.

Finding Windows install appointment using systeminfo

Users who are running Microsoft Windows XP Professional, Windows Vista, Windows 7, Windows 8, or Windows x tin can utilize the systeminfo control to prove when Windows was installed on the figurer. To run and use the systeminfo control, follow these steps.

Note

If you've upgraded to a newer version of Windows (e.m., upgraded Windows 8 to Windows 10) the original install date shown is the date of the upgrade.

  1. Open the Windows command line.
  2. From the command line, type the following command to show but the original install appointment. If y'all are using a non-English version of Windows, this control may not piece of work, and you may want to utilise 1 of the other options.
systeminfo|discover /i "original"

If washed properly systeminfo should return output similar to the case shown.

Original Install Appointment:     12/17/2015, 7:09:l PM

or

  1. Open up the Windows control line.
  2. From the command line, type systeminfo and press Enter to run across output like to the following instance. The "Original Install Appointment" is when Windows was installed on the estimator.
Host Name:                 COMPUTERHOPE
Os Name:                   Microsoft Windows 10 Pro
Bone Version:                10.0.10586 N/A Build 10586
OS Manufacturer:           Microsoft Corporation
Bone Configuration:          Standalone Workstation
Os Build Blazon:             Multiprocessor Free
Registered Possessor:          Computerhope
Registered Organization:   Figurer Hope
Product ID:                00000-00000-00000-AAAAA
            Original Install Appointment:     12/17/2015, 7:09:50 PM            
Organization Boot Fourth dimension:          3/28/2016, half-dozen:57:39 AM
System Manufacturer:       Dell Inc.
System Model:              XPS 8300
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
            [01]: Intel64 Family half-dozen Model 42 Stepping 7 Genuine Intel ~3401 Mhz
BIOS Version:              Dell Inc. A06, 10/17/2011
Windows Directory:         C:\WINDOWS
System Directory:          C:\WINDOWS\system32
Kicking Device:               \Device\HarddiskVolume1
System Locale:             en-united states;English (United States)
Input Locale:              en-us;English language (United States)
Fourth dimension Zone:                 (UTC-07:00) Mountain Time (Us & Canada)
Total Concrete Memory:     eight,174 MB
Available Physical Memory: 2,955 MB
Virtual Memory: Max Size:  xvi,366 MB
Virtual Retentiveness: Available: vi,455 MB
Virtual Memory: In Use:    9,911 MB
Page File Location(southward):     C:\pagefile.sys
Domain:                    WORKGROUP
Logon Server:              \\MicrosoftAccount
Hotfix(s):                 ten Hotfix(southward) Installed.
            [01]: KB3116900
            [02]: KB3124200
            [03]: KB3124262
            [04]: KB3124263
            [05]: KB3135173
            [06]: KB3139907
            [07]: KB3140741
            [08]: KB3140743
            [09]: KB3140768
            [10]: KB3144756
Network Card(south):           2 NIC(s) Installed.
            [01]: DW1501 Wireless-North WLAN Half-Mini Carte
            Connection Name: Wi-Fi
            Status:          Media asunder
            [02]: Broadcom NetLink (TM) Gigabit Ethernet
            Connectedness Name: Ethernet
            DHCP Enabled:    Yes
            DHCP Server:     192.168.one.1
            IP address(es)
            [01]: 192.168.i.52
            [02]: fe00::b0b0:0000:0000:0000
Hyper-V Requirements:      VM Monitor Style Extensions: Yes
            Virtualization Enabled In Firmware: Yes
            2nd Level Address Translation: Yes
            Data Execution Prevention Available: Yes

Finding Windows install date in the registry

The install date is too in the Windows registry for all versions of Windows by following these steps.

  1. Open the registry.
  2. Browse to the following path.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
  1. Once in the folder above, locate the "InstallDate" key, which contains the hexadecimal and decimal value of the engagement Windows was installed. Open the "InstallDate" central.
  2. Select Decimal to go the decimal value, which is the engagement in epoch time. Once this value is copied, you need to use an epoch converter to convert that value into a readable engagement. Below is an example of an epoch and its converted appointment value.

Epoch value: 1450404590

GMT value: Fri., 18 December. 2015 02:09:50 GMT