Help me decide partition size

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  1. Posts : 184
    Windows 10 HOME SINGLE LANGUAGE
       #1

    Help me decide partition size


    My laptop have 1tb hard drive. I am planning to make C and D drive, for C 200GB and D 800GB. Is it good enough ? Also how much GB you get from 1TB? 900gb or something ?
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  2. Caledon Ken's Avatar
    Posts : 15,626
    Windows 10 Pro x64 Build 1809
       #2

    931 GB.

    Hard to say what is right size for programs (C:) as we don't know how you use your device.

    If you subtract your personal data storage from your current C: drive how much is used for programs? (Of course I'm assuming you just have a c: right now and that could be a very bad assumption. Use file explorer to tell you how big c:\users is.)
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  3. Posts : 184
    Windows 10 HOME SINGLE LANGUAGE
    Thread Starter
       #3

    Caledon Ken said: View Post
    931 GB.

    Hard to say what is right size for programs (C:) as we don't know how you use your device.

    If you subtract your personal data storage from your current C: drive how much is used for programs? (Of course I'm assuming you just have a c: right now and that could be a very bad assumption. Use file explorer to tell you how big c:\users is.)
    I think i will put 240gb in C and 760gb in D but if 1tb = 930gb. What should i write in the partition box ? Can i just write 760gb ?
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  4. ignatzatsonic's Avatar
    Posts : 795
    Windows 10 Home, 64-bit
       #4

    If you are installing Windows, you should be able to set C at 240 and then after Windows is installed to that partition, you could go to Windows Disk Management and see how much Windows says remains unallocated and use that indicated amount for D. You wouldn't have to worry about D at all during the installation process.

    Or just choose the entire drive for C and then shrink C to 240 after Windows is installed. Then make D out of what's left after the shrink.

    You shouldn't have to size the D partition or worry about it at all until AFTER Windows is installed.
    Last edited by ignatzatsonic; 3 Weeks Ago at 02:16.
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  5. Posts : 184
    Windows 10 HOME SINGLE LANGUAGE
    Thread Starter
       #5

    If i want 240GB on C drive should i write 240000 MB or 245758 MB in this box (screenshot) ?
    Click image for larger version. 

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    Last edited by mikelferdinan; 3 Weeks Ago at 10:29. Reason: Fixing image
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  6. Dude's Avatar
    Posts : 13,703
    Windows 10 Pro X64
       #6

    Go with 245760
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  7. Berton's Avatar
    Posts : 5,944
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint, Win7 Pro
       #7

    ignatzatsonic said: View Post
    If you are installing Windows, you should be able to set C at 240 and then after Windows is installed to that partition, you could go to Windows Disk Management and see how much Windows says remains unallocated and use that indicated amount for D. You wouldn't have to worry about D at all during the installation process.

    Or just choose the entire drive for C and then shrink C to 240 after Windows is installed. Then make D out of what's left after the shrink.

    You shouldn't have to size the D partition or worry about it at all until AFTER Windows is installed.
    I agree and will add that there probably will be a small partition or two that will end up between the C: partition and any unallocated space such as could be called D:\DATA, will get in the way later on if wanting to Expand C: and require third-party software to change. I'd go with 200-250GB for C:, get Windows running then use Disk Management to deal with the resultant unallocated space. My 3 year old ASUS came with C: at 150GB and D: at 750GB and have no problems with it. One can usually do Custom installs of programs and put most of them on D:, save space on C:.
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  8. Posts : 184
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    Thread Starter
       #8

    Before i start to clean install my laptop. after usb done copying Windows file to the computer and then first reboot, do i need to unplug the usb drive or maybe turn back bios boot to hard drive? Or i maybe i don't have to do both and bios will automatically boot to hard drive if i don't press any key?
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  9. Caledon Ken's Avatar
    Posts : 15,626
    Windows 10 Pro x64 Build 1809
       #9

    You didn't mention what kind of laptop you have.

    Some devices like HP and Dell allow you to override boot order to USB using a function key when you power it up and on the next boot it returns to BIOS order.


    What is your boot order?

    What type of laptop do you have?
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  10. Posts : 184
    Windows 10 HOME SINGLE LANGUAGE
    Thread Starter
       #10

    Caledon Ken said: View Post
    You didn't mention what kind of laptop you have.

    Some devices like HP and Dell allow you to override boot order to USB using a function key when you power it up and on the next boot it returns to BIOS order.


    What is your boot order?

    What type of laptop do you have?
    Sorry i did not mention my laptop before. My laptop is ASUS TUF FX505DT. I am using MCT to make bootable to my Flash Drive, and my bios is UEFI.
    I want to make sure my bios ask me if i want to boot from USB if i press any key, and if i don't press any key the bios will automatically boot me to hard drive. So i don't load to flash drive again after copying windows file to computer and first reboot during windows installation.
    And for boot order Flash Drive in first priority then hard drive in second priority

    Sorry if i can't explain better, but the point is i want this screen (screenshot) appear when i clean install my windows every time my laptop reboot during the installation, so i dont have to unplug my flash drive until windows installation done
    Click image for larger version. 

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    - - - Updated - - -

    Does this screen will automatically appear on the first reboot right after your flash drive done with copying windows file to your laptop progress ?
    Because i saw clean install video on youtube, its seems this screen doesnt appear on the first boot with USB and then appear right after first reboot after copying windows file done.
    Last edited by mikelferdinan; 3 Weeks Ago at 18:37.
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