How To View The Date & Time When Windows Was Installed

So, you need to find out now when was the last time you installed Windows on the machine? Since you’re reading this article post, the answe...



So, you need to find out now when was the last time you installed Windows on the machine? Since you’re reading this article post, the answer to this question might be yes. I’m unclear about you, but many simply believe re-installing Windows at regular intervals - from a year, let’s say - keeps it in optimal state. I wouldn’t argue your theory, but in such a case, creating a reference date of your respective last Windows installation does make sense. Or you might want to know about the date and time of your Windows installation just away from curiosity. Fortunately, and then there are several different ways available to do that, which I can tell you step by step, following the break.


Windows Explorer Method


The first method includes taking the help of Windows Explorer, and it’s surely the best (though definitely not the most accurate) method of finding out the installation date and time. To accomplish that, simply open the partition the location where the operating system is installed (usually drive C:) and right-click the ‘Windows’ folder followed by clicking ‘Properties’.

Date and Time Windows Installation_Method 1_Step 1

Under the Properties sheet from the Windows directory, it is possible to see it’s Created date and time. This time and date should be the comparable to when Windows was installed for a computer.

Date and Time Windows Installation_Method 1_Step 2

Earlier, I mentioned that this method is probably not very accurate, as well as the reason for it is because since Windows Vista, many computers include image-based installation media for Windows installation, which doesn’t exactly ‘install’ a fresh copy of Windows for the machine, but alternatively just replicates the image around the CD or DVD to the computer’s storage. As the date of actual creation of the Windows folder for the image-based installation media is not the just like the time and date at which you last used that media to reinstall Windows on the computer, the date will never be accurate. To cope with this matter, you are able to alternatively look into the creation date of the ‘Users’ folder as this folder is produced during Windows installation. Do note that will provide accurate result limited to the account that was created during or immediately after set up ..

Date and Time Windows Installation_Method 1_Step 3


SystemInfo Command Method


Another way of finding the right Windows installation time and date is through the systeminfo command. Just open Command Prompt from your Start Screen or Start Menu.

Date and Time Windows Installation_Method 2_Step 1

Next, type the following command in the Command Prompt window, and press the Enter key:

systeminfo | find /i "date"

The tool will scan the knowledge for youand demonstrate your Windows installation date, as shown below.

Date and Time Windows Installation_Method 2_Step 2_Alternative


WMIC Command Method


The third technique is to use the Windows Management Instrumentation Command-line (WMIC). This technique is also not hard and displays accurate result.

First off, open Command Prompt as Administrator and run these command. You can also refer to the screenshot below:

WMIC OS GET installdate

Date and Time Windows Installation_Method 3

From the aforementioned screenshot, you are able to see that it displays a number. This number contains year, month,, date, hour, minutes and seconds of the installation starting time and date. According towards the above screenshot, the telephone number translates to 2012-11-05, 10:52:26


Registry Editor Method


The Registry Editor is another means of finding installation time and date on your system. This way is a bit more complex than the ones explained earlier, and require a little bit of manual calculation. Nevertheless, here’s the way to do it.

Open Registry Editor using the Run dialog window or Start Screen.

Date and Time Windows Installation_Method 4_Step 1

Now go on the following registry location:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

In the correct pane that displays DWORD values, there'll be an InstallDate DWORD. It carries the whole number of seconds since 1st January, 1970 till mobile phone time, enclosed in brackets.

Date and Time Windows Installation_Method 4_Step 2

There is usually a lot of ways you are able to use this number to calculate the accurate time. One way is usually to divide this number by 60, 60 and 24 to get the telephone number of days between 1970 and set up . time, and then convert these to years by dividing with 365.25 (to take into account leap years). There can be different ways too, including online converters that may calculate this duration for you automatically to show you the correct time and date.

This concludes our tutorial. If you have any other thoughts or some other tips for finding the installation starting time and date, drop a line within the comments section below.

[via AskVG]

Read How To View The Date & Time When Windows Was Installed by Waqas Ahmed on

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