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  1.    19 Jun 2016 #1
    Join Date : Oct 2015
    Posts : 38
    Windows 10

    Set Different Dates On Dual Boot?


    I have a multi-boot (10, 7 & XP) system and would like to change the date on 7 or XP to Feb. 2012. Is it possible? With all the utilities out there, surprised I could not find any on line. Thought with virtual-everything these days, there should be a utility to control the date on the other OS. Just checking if it is possible. Will still keep the main OS (Win10) at current date and time (Time Zone).
    Thanks in advance.
      My ComputerSystem Spec
  2.    19 Jun 2016 #2
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Windows 7 and Windows XP should both have options in the adjust date and time settings to turn off automatic time setting over the internet. The problem, I believe, is that the operating system also updates the system clock in bios/UEFI. So when you boot into Windows 10, it would change the system clock in bios/UEFI to the current time. Then when you return to Windows 7 or XP, upon booting the OS would read the system clock in bios/UEFI and startup with that date/time setting.
      My ComputerSystem Spec
  3.    19 Jun 2016 #3
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,603
    Windows 10 IoT

    Quote Originally Posted by NavyLCDR View Post
    Windows 7 and Windows XP should both have options in the adjust date and time settings to turn off automatic time setting over the internet. The problem, I believe, is that the operating system also updates the system clock in bios/UEFI. So when you boot into Windows 10, it would change the system clock in bios/UEFI to the current time. Then when you return to Windows 7 or XP, upon booting the OS would read the system clock in bios/UEFI and startup with that date/time setting.
    Ditto. If you turn off time sync, and then adjust the time manually, it will likely get set in the BIOS to match. Then on the next boot into Windows 10, it will sync and reset it to the correct time and date. Wash rinse and repeat. Why Feb. 2012?
      My ComputerSystem Spec
  4.    19 Jun 2016 #4
    Join Date : May 2015
    Central IL
    Posts : 4,349
    Mac OS Sierra

    Time sync has always been a PITA with Dual boots.
      My ComputerSystem Spec
  5.    19 Jun 2016 #5
    Join Date : Oct 2015
    Posts : 38
    Windows 10
    Thread Starter

    Looks like you miss-read my message. I do NOT want it to "sync". I would like Win10 to be correct time and date and XP to maintain (unsync) amd maintain and start from February 2012. Guess it is not possible since you mentioned the BIOS system time control.
      My ComputerSystem Spec
  6.    19 Jun 2016 #6
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    You might be able to create a powershell script or bat file that runs upon booting which resets the date/time to what you want.
      My ComputerSystem Spec
  7.    19 Jun 2016 #7
    Join Date : Oct 2015
    Posts : 38
    Windows 10
    Thread Starter

    Yep. That's what I am looking for. A bat file or a utility to install. Can't write scripts for OSs. Just wondering if anyone has come across such. Thanks though.
      My ComputerSystem Spec
  8.    19 Jun 2016 #8
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    I believe the bat file command for setting the date would be:

    date 02-01-2012

    The format is date mm-dd-yyyy

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  9.    19 Jun 2016 #9
    Join Date : May 2015
    Central IL
    Posts : 4,349
    Mac OS Sierra

    Set Different Dates On Dual Boot?


    Quote Originally Posted by caxtin View Post
    Looks like you miss-read my message. I do NOT want it to "sync". I would like Win10 to be correct time and date and XP to maintain (unsync) amd maintain and start from February 2012. Guess it is not possible since you mentioned the BIOS system time control.
    Did not misread anything. This problem has been long going with Dual boot aystems not having one OS installed sync properly, since the bios clock is affected by the first OS booted up forthe day.

    Been doing this for over 30 years and the UTC problem can only be solved if you force a clock update when logging into the OS.
      My ComputerSystem Spec
  10.    20 Jun 2016 #10
    Join Date : Jul 2014
    Serbia
    Posts : 10,626
    W10 Insider + Linux

    Clock is physical/electronic device. OS doesn't have a clock, it just reads time/date from BIOS.
      My ComputersSystem Spec

 
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