Windows 10: ssd marked accidentally as active Solved

  1.    22 Dec 2015 #1

    ssd marked accidentally as active

    With mistake i accidentally marked one of the ssd's as active and now i can't use it for anything.
    it wont delete it wont format i have no options in disk management for it.

    when i press erase it says that "Windows can't erase the active system partition on this disk"

    says the same thing when i try to format from "my computer".

    i know that only the OS drive should be marked active and i want do to something about it. cause i need the ssd...
      My ComputerSystem Spec

  2. topgundcp's Avatar
    Posts : 2,438
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       22 Dec 2015 #2

    Normally you use diskpart command to mark it "Inactive". However, you have to be sure it's not the partition Windows boot from. Show us the screen shot of Disk Management then we can help you.
      My ComputerSystem Spec

  3.    22 Dec 2015 #3

    Click image for larger version. 

Name:	dmgmt.png 
Views:	9 
Size:	69.9 KB 
ID:	54854
      My ComputerSystem Spec

  4.    22 Dec 2015 #4

    i just reinstalled Windows 10 since somehow after accidentally marking the other disk as active and then after a reboot of the computer made sure that boot\bcd didnt exist.

    using the "repair the computer" just restarted the computer.

    and it just deleted the OS. i checked in diskpart using the Windows 10 dvd to "repair my computer" and entering cmd. the only partition i have now is the one newly installed Windows 10. so i can't do anything from there.
    Last edited by m0nk3n; 22 Dec 2015 at 15:25.
      My ComputerSystem Spec

  5.    22 Dec 2015 #5

    i managed to mark it inactive. but can't format it or delete it.

    do you think i might be able to use easybcd to fix this since the disk i'm trying to format has the system flag still on it so that it wont get formatted...
      My ComputerSystem Spec

  6.    22 Dec 2015 #6

    and now i restarted did nothing to anything just a simple restart it booted from the dvd again telling me to install windows 10 again.
    i went straight into "repair my computer" and cmd line option. and now formatting the drive i dont want as system..

    on a laptop now.
      My ComputerSystem Spec


Related Threads
When I have any programs open that have gone to the taskbar because another program opened... How do I get any of those programs to activate again from taskbar? This has driven me nuts since I got Win 10. I click on the program icon on taskbar,...
Now, I got a new wireless Bluetooth Mouse and Windows 10 is NOT finding the device....because I removed Bluetooth! Should I take this up with Samsung Technical Support(useless)....or can anybody here walk me back to restoring Bluetooth? TIA
Drives Marked Read Only in Drivers and Hardware
I have several hard drives on my PCs; some are physical, some are partitions. In every PC I've upgraded, W10 marks these as RO. I go through the ritual of setting permissions to Full and marking RW, but occasionally a drive will revert to RO. I...
Dear All, I have 2 internal HDDs connected to my system, say A and B. I am trying to make a full system image backup in Win 10. After selecting the backup location as external hard disc, and clicking "Next," I am asked to select the drives that...
I just installed Speccy and Unchecky; in August, I install OmniPage with PDF Creator. When I go try to make PDF Creator my default program, it's not there in Settings>Default Apps. So, I go to Apps and Features and find it's installed but marked...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 08:13.
Find Us