In order to convert it into a human readable format in the same Powershell, you shall write:. Extracting from Windows registry with Powershell Using systeminfo via CMD: Systeminfo displays configuration information about a computer and its operating system, and also the Original Installation Date.
To extract the installation date, open a cmd and type:. Open a powershell windows and write this command:. With this command, you will get the installation date in a human readable format. Please refer also to this interesting discussion. Requirement: Powershell SO: Windows 10 If you use other methods to get the installation date, please share them in the comment box.
Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content. In order to convert it into a human readable format in the same Powershell, you shall write: Get-Date " This folder will be deleted when you run Disk Cleanup or automatically a month after the upgrade.
This explains why we are seeing the strange date, this is probably the date on which the system was upgraded with the Creators Update. In the registry, there is another, lesser-known key, that also contains information about the installation date. From this list, we can see that windows were replaced by another version at least 4 times. The contents of these keys are identical to the contents of a Currentversion key.
Looking at the keys we are able to determine what version was installed before the upgrade. Please note that the this timestamp might not match the date shown behind the Source OS key of the backup. In this case the oldest Key from contained the InstallDate value which translates to This tells us a lot about the system and the windows installation.
We can see that the system was originally installed on with Windows 8. This corresponds with my story about the system being installed and upgraded just before the free upgrade to Windows 10 officially ended. The system was upgraded from to Since I chose to keep my personal files this information was preserved in the Registry.
The last upgrade and the cause of the discrepancy between the actual installation date and the date stored in the Registry are also shown here as the upgrade from to In conclusion, this all shows that Windows 10 does things differently than you might be used to.
In this case determining the installation date of Windows 10 should be done based on A. Filesystem analysis B. Registry analysis and if possible C. Logfile analysis. AccessData Live Online Training.
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