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How to Change System Protection Maximum Storage Size for Drive in Windows 10

information   Information
System protection is a feature that regularly creates and saves information about your computer's system files and settings. System protection also saves previous versions of files that you've modified. It saves these files in restore points, which are created just before significant system events, such as the installation of a program or device driver. They're also created automatically once every seven days if no other restore points were created in the previous seven days, but you can create restore points manually at any time.

You can adjust the maximum disk space per drive used for system protection. As space fills up, older restore points will automatically be deleted to make room for new ones.

This tutorial will show you how to resize the maximum shadow copy storage space used by system protection for a drive in Windows 10.

You must be signed in as an administrator to be able to change maximum shadow copy storage size.

Note   Note
Restore points are stored in the hidden protected OS System Volume Information folder in the root directory of each drive you have system protection turned on.


CONTENTS:
  • Option One: To Change System Protection Maximum Storage Size for Drive in System Protection Settings
  • Option Two: To Change System Protection Maximum Storage Size for Drive in Command Prompt






Change System Protection Max Storage Size for Drive in Windows 10 OPTION ONE Change System Protection Max Storage Size for Drive in Windows 10
To Change System Protection Maximum Storage Size for Drive in System Protection Settings

1. Do step 2, step 3, or step 4 below for how you would like to open System.

2. Open the Win+X Quick Link menu, click/tap on System, and go to step 5 below.

3. Open the Control Panel (icons view), click/tap on the System icon, and go to step 5 below.

4. Open the Control Panel (icons view), click/tap on the Recovery icon, click/tap on the Configure System Restore link, and go to step 6 below. (see screenshot below)

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5. Click/tap on the System protection link on the left side. (see screenshot below)

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6. If prompted by UAC, click/tap on Yes.

7. Under Protection Settings, select a drive (ex: C: ) that you want to change the maximum storage size for, and click/tap on the Configure button. (see screenshot below)

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8. Adjust the Max Usage slider to the percentage you want, and click/tap on OK. (see screenshot below)

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Change System Protection Max Storage Size for Drive in Windows 10 OPTION TWO Change System Protection Max Storage Size for Drive in Windows 10
To Change System Protection Maximum Storage Size for Drive in Command Prompt

1. Open an elevated command prompt.

2. Copy and paste the command below into the elevated command prompt, and press Enter. This will show you the current maximum usage size for all drives that have a shadow copy storage space. (see screenshot below)

vssadmin list shadowstorage

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3. Type the command below into the elevated command prompt, and press Enter. (see screenshots below)


vssadmin resize shadowstorage /for=<ForVolumeSpec> /on=<OnVolumeSpec> /maxsize=<MaxSizeSpec>


Note   Note
Substitute <ForVolumeSpec> in the command above for the actual drive letter (ex: C: ) that the shadow copy storage is for. This will be the For volume in the results from step 2.

Substitute <OnVolumeSpec> in the command above for the actual drive letter (ex: C: ) that the shadow copy storage is on. This will be the Shadow Copy Storage volume in the results from step 2.

Substitute <MaxSizeSpec> in the command above for the actual size you want.
  • The MaxSizeSpec value must be 1 MB or greater and must be expressed in % percentage or one of the following units: KB, MB, GB, TB, PB, or EB. If no unit is specified, MaxSizeSpec uses bytes by default.
  • If no value is specified for /maxsize, there is no limit placed on the amount of storage space that can be used.

For example:

vssadmin resize shadowstorage /for=C: /on=C: /maxsize=12GB

OR

vssadmin resize shadowstorage /for=C: /on=C: /maxsize=5%



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4. When finished, you can close the elevated command prompt if you like.


That's it,
Shawn