Avatar of Frank Kavanagh
Frank Kavanagh
Flag for United States of America asked on

How do I increase the size of the C drive?

I just replaced a smaller SSD with a larger one that now has unused space.   How do I add this space to the C partition?
Windows 10Storage Hardware

Avatar of undefined
Last Comment
Frank Kavanagh

8/22/2022 - Mon
Dr. Klahn

This cannot be done safely with Windows running from the partition that will be resized.

There are two choices:

a) Make a bootable USB drive with the drive cloning software of your choice.  Shut down the system and attach the new drive.  Boot from the USB drive.  Clone to the new drive.  Shut down, remove the bootable USB drive, remove the old drive, boot to BIOS, set the BIOS to boot from the new drive.

b) Take both drives to another system and attach them to the system.  Use any Windows drive cloning software.  Clone to the new drive.  Shut down, remove both drives, remove the old drive from the original system, install the new drive, boot to BIOS, set the BIOS to boot from the new drive.
Alex

This cannot be done safely with Windows running from the partition that will be resized.


Yes it can. Launch diskmgmt.msc and then shrink the C:\ by right clicking and shrink. It's windows 10, no need to faf about with boot disks.


Regards

Alex

Alex

Oh or you can expand it, either way.

This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23
ASKER CERTIFIED SOLUTION
Jackie Man

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.
Kimputer

Better do it outside Windows, so use this instead:  https://www.paragon-software.com/free/pm-express/ 

And after install, create the boot medium.   

McKnife

It's done safely within windows. And you have a backup, don't you?

Alex

It makes zero difference if it's done within windows or not, it's not 1999 it's 2020, Operating systems are MORE than capable of shrinking or increasing disks due to the File Allocation table that they use. I.E ExFAT, NTFS etc etc.

⚡ FREE TRIAL OFFER
Try out a week of full access for free.
Find out why thousands trust the EE community with their toughest problems.
Jackie Man

Agreed.

But if there is system recovery partition next to C partition, you cannot use the built-in disk management utility to do the task.
McKnife

Yep, if you disk layout is non-standard, then you are right, Jackie Man.

Frank Kavanagh

ASKER
I used MiniTool Partition Wizard.   That seemed to work fine.   I am attaching the snips before and after.Before MiniToolAfter MiniTool
Experts Exchange is like having an extremely knowledgeable team sitting and waiting for your call. Couldn't do my job half as well as I do without it!
James Murphy
McKnife

Yes, that was a non-standard layout which needed 3rd party tools.

Frank Kavanagh

ASKER
Thanks to all contributors.