How to Change Windows Installation Date and Time Using Registry Editor

by Maitreya PatniOctober 13, 2013

In my Previous Article i showed how to Find Your Computer’s Windows Installation Date and Time, and now i am gonna show you How to Change that Installation Date and Time Using the Registry Editor.



Changing Windows Installation Date using Registry Editor :-

Step 1 :- First of all Open “Run” dialog box. To do so you can either do it by typing “Run” in the Start Menu search or by pressing the “Win+R” key combination.



Step 2 :- Now type “regedit” in the box that appears and hit enter. You can also type “regedit” in the Start Menu search to open Registry Editor.

Registry Editor Using Run Dialog Box

Registry Editor Using Run Dialog Box

Step 3 :- Navigate to “HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > “ in the Registry Editor Windows.

Step 4 :- You will find a key named “InstallDate” in the Right sidebar as shown in below image.Just Double Click on it.

Step 5 :- A new popup box will appear showing numerical value. This is the number of seconds between 1/1/1970 and your installation time.

Step 6 :- To change your Windows installation date just add or subtract the duration by which you want to change your date. For Example – If you wish to add one day to your installation date, then add “60x60x24=86400″ to the value.




If I wanted to add one day to my installation date, I would change the value to “1350224291″. Now Click OK after that.

That’s it, Now go and Check your Installation Date and See the Difference.

About The Author
Maitreya Patni
Maitreya is the Founder and Chief Editor at Broodle. He loves helping people around him to get through the day to day trouble they face with technology. So that, they can love technology as much as he does! Follow Him on Google Plus : Google+.