'Shrink volume' greyed out in W10 Disk Management

Kernel_Sanders

I'm trying to partition an SD card using W10 Computer Management, but there's no option for it:
[IMG]http://forums.moneysavingexpert.com/<a href=http://www8.zippyshare.com/v/NzuCfqR5/file.html rel=nofollow>[/img]shrink.png

John_Gray

Personally, I would use MiniTool Partition Wizard...

Kernel_Sanders

John_Gray wrote: »

Personally, I would use MiniTool Partition Wizard...

[FONT=Calibri, serif]That doesn't let you enter a new partition size, either using the keypad or the dropdown menu. I discovered why in 'help', although it does seem to be totally contradictory!:[/FONT]
[FONT=Times New Roman, serif]Note 2[/FONT][FONT=Times New Roman, serif]: MiniTool Partition Wizard does not support removable disks. But it can be well supportable to USB or other external disks of different interfaces. [/FONT]

Lorian

Its not formatted - just delete it and create a smaller partition?

tronator

Lorian wrote: »

Its not formatted - just delete it and create a smaller partition?

Or maybe the sd card is not partitioned and the filesystem is created on the blockdevice without a partition table. I don't know whether Windows can handle such disks.

esuhl

Just delete the existing partition and create new ones of the appropriate sizes.

Harold.Finch

Personally, I would make a bootable USB using gparted then partition and format the new disk from there:-

https://gparted.org/liveusb.php

As gparted used a linux base just be careful that you select the correct drive in the GUI before proceeding.

Kernel_Sanders

Lorian wrote: »

Its not formatted - just delete it and create a smaller partition?

It is, I did the long one (which took 50 minutes).

tronator wrote: »

Or maybe the sd card is not partitioned....

Why would it be?

Harold.Finch wrote: »

Personally, I would make a bootable USB g.

This is what I'm trying to do, after reserving about 30GB for additional storage for the laptop. I thought the SD card had to be formatted first.

esuhl

GParted is a much more powerful partitioning program (whilst still being easy to use). There's a live CD/DVD/USB version you can boot from:

https://gparted.org/livecd.php