Open Settings and select Advanced, then Developers. Click Linux, then select Back up and restore. Select Back up. Choose where to save your files under the My Files heading on the left. Enter a name for your backup file and click Save.

On some models you’ll need to hold down Esc + Maximize instead. The Maximize button looks like 4 right-angle brackets arranged into a square shape.

On some models you’ll need to hold down Esc + Maximize instead. The Maximize button looks like 4 right-angle brackets arranged into a square shape.

On some models you’ll need to hold down Esc + Maximize instead. The Maximize button looks like 4 right-angle brackets arranged into a square shape.

On some models you’ll need to hold down Esc + Maximize instead. The Maximize button looks like 4 right-angle brackets arranged into a square shape.

You can also select Developer Mode from the Advanced options menu on the Recovery screen.

You can also select Developer Mode from the Advanced options menu on the Recovery screen.

You can also select Developer Mode from the Advanced options menu on the Recovery screen.

You can also select Developer Mode from the Advanced options menu on the Recovery screen.

You can also select Developer Mode from the Advanced options menu on the Recovery screen.

The → key is located above the number 3 key on a Chromebook keyboard.

The → key is located above the number 3 key on a Chromebook keyboard.

The → key is located above the number 3 key on a Chromebook keyboard.

The → key is located above the number 3 key on a Chromebook keyboard.

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Click the Extensions button, which looks like a puzzle piece, in the top right corner of the Chrome browser window. Select the Chromebook Recovery Utility extension. An extension window should pop up. Click Get Started in the pop-up window. Select your Chromebook model in the Select a model from a list menu. You can also type in your model number if you know it. Select Continue, then insert your USB drive into the USB port on your computer. Choose your USB drive from the dropdown menu, click Continue, then click Create Now. Remove the USB drive once you see a message telling you that your recovery disk is ready.

Click the Extensions button, which looks like a puzzle piece, in the top right corner of the Chrome browser window. Select the Chromebook Recovery Utility extension. An extension window should pop up. Click Get Started in the pop-up window. Select your Chromebook model in the Select a model from a list menu. You can also type in your model number if you know it. Select Continue, then insert your USB drive into the USB port on your computer. Choose your USB drive from the dropdown menu, click Continue, then click Create Now. Remove the USB drive once you see a message telling you that your recovery disk is ready.

On some other models, you may need to hold Esc and Maximize (which looks like 4 right-angle brackets arranged in a square) while pressing Power. Let go of the keys when you see a message letting you know you are in Recovery Mode.

On some other models, you may need to hold Esc and Maximize (which looks like 4 right-angle brackets arranged in a square) while pressing Power. Let go of the keys when you see a message letting you know you are in Recovery Mode.

On some other models, you may need to hold Esc and Maximize (which looks like 4 right-angle brackets arranged in a square) while pressing Power. Let go of the keys when you see a message letting you know you are in Recovery Mode.

On some other models, you may need to hold Esc and Maximize (which looks like 4 right-angle brackets arranged in a square) while pressing Power. Let go of the keys when you see a message letting you know you are in Recovery Mode.

If you get an error message saying The device you inserted doesn’t contain ChromeOS, you may need to erase the USB drive and try again, or use a different USB drive.