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Chromebook Frozen Screen or Unresponsive Keyboard

SDLA Quick Fix Idea · Chromebook

The Chromebook Screen Is Frozen or the Keyboard Is Unresponsive

Start with the least disruptive recovery, protect unsaved student work, and use a hardware reset only when an ordinary restart is not possible or does not work.

Teacher

The Chromebook has stopped responding. The pointer, keyboard, or current page appears frozen. What can I safely try before sending the device to technology support?

Quick Fix

Before restarting: If this is a secure assessment, accessibility session, or supervised testing app, stop and contact the testing coordinator. A restart may end the session. If any controls still respond, save cloud work and close the activity normally first.

Hardware reset, not Powerwash

For most Chromebooks, hold Refresh, tap Power, and release Refresh when the device starts. This restarts hardware such as the keyboard and touchpad; it is not a factory reset.

Work through these steps in order and test after each one.

  1. Check whether only one page is frozen

    Wait briefly for the page to respond. If the keyboard works, save anything you can. Try Ctrl + Shift + R to reload that page without cached content, or Ctrl + W to close only the affected tab. Reloading or closing can discard unsaved entries.

  2. Close unnecessary work and restart normally

    If Chrome still responds, close unused tabs and apps. Use the status area to choose Power, then start the Chromebook again. A normal restart is preferable to forcing the device off.

  3. If the Chromebook will not respond, turn it off

    Press and hold the Power button until the device turns off. Wait several seconds, then press Power once to restart. Do not repeatedly press keys while it is shutting down.

  4. Use the hardware reset only if needed

    Turn the Chromebook off. Press and hold Refresh, tap Power, and release Refresh when the Chromebook starts. Google cautions that a hardware reset might delete some files in the Downloads folder. Do not describe this step as completely risk-free.

  5. If freezing returns, check the pattern
    • Close heavy tabs and video calls that are no longer needed.
    • Note whether one website, app, or recently added extension triggers the freeze.
    • Only disable or remove an extension the student is authorized to manage. District-installed extensions may be enforced and require an administrator.
    • Open the Launcher and search for Diagnostics to test memory or the keyboard when the device is responsive again.

The device works after restartReopen only the required class resources. If the same tab or extension causes another freeze, document it and stop using that item until it is reviewed.

The keyboard remains unresponsiveTry an external keyboard only if local procedures allow it, then submit the device for support. A failed Diagnostics keyboard or memory test should be included in the ticket.

Copy-and-paste support request

Subject: Chromebook freezes or keyboard remains unresponsive Student/device asset number: [asset number] Date and time observed: [date/time] Activity, website, or app open: [name and URL if appropriate] What stopped responding: [screen / pointer / keyboard / specific tab] Normal restart attempted: [yes/no and result] Refresh + Power hardware reset attempted: [yes/no and result] Does the issue recur with one app, site, or extension?: [details] Diagnostics result, if available: [result] Please check the device and any managed app or extension policy. No student password is included.

Official guidance

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Chromebook is unresponsive

SDLA Quick Fix Idea · Chromebook

The Chromebook Is Running Slowly

Reduce current workload first, identify the tab or extension using resources, and clear only the browsing data that is actually needed.

Teacher

The Chromebook is slow, tabs keep refreshing, or classroom apps take a long time to respond. What should I try without disrupting the student's account or district settings?

Quick Fix

Protect student work first: Before closing tabs, ending a process, restarting, or clearing data, save or submit any open work. Ending a task can discard unsaved changes. Do not remove district-required extensions or clear passwords, cookies, or site data unless local support directs you to do so.

Start with workload, not deletion

Too many tabs, video meetings, background apps, low storage, or one heavy extension can slow a Chromebook. Closing what is not needed is safer and often more useful than immediately deleting all browsing data.

Work through these steps in order and test after each one.

  1. Close unused tabs and apps

    Save work, then close unused tabs with Ctrl + W. End video calls, Android apps, and extra windows that are no longer part of the lesson. Restart the Chromebook if it has been running for many days.

  2. Find a resource-heavy task

    Press Shift + Esc to open Chrome Task Manager. Sort by memory when available. If one optional tab, app, or extension is using unusually high resources, select it and choose End Process. Unsaved work in that task will be lost.

  3. Review extensions carefully

    In Chrome, open More > Extensions > Manage extensions. Disable or remove only an unnecessary extension the user is authorized to manage, especially one added shortly before the slowdown began. A managed extension may be locked on by district policy; document it for support rather than trying to bypass management.

  4. Clear cache only when it fits the symptom

    Press Ctrl + H to open History, then choose Delete browsing data. Select an appropriate time range and Cached images and files. Leave passwords, autofill, cookies, and other site data unchecked unless there is a specific reason and local guidance. Cache clearing is most useful for a misbehaving site; it is not the first fix for every slow Chromebook.

  5. Check updates, storage, and Diagnostics
    • Open Settings > About ChromeOS and check for updates when district policy permits.
    • Open Settings > System preferences > Storage management and look for very low free space.
    • Search the Launcher for Diagnostics to review CPU and memory behavior. CPU stress tests can temporarily make the device slower, so do not run them during instruction.

Performance improves after tabs closeReopen only the resources needed for the lesson. If one website consistently causes the slowdown, record its URL, activity, and the number of affected students.

One optional extension is responsibleLeave it disabled if authorized and report the finding. If the extension is required or managed, ask technology staff to review its policy and version.

The device is low on storageMove needed local files to the district-approved cloud location before deleting anything. Follow local retention and privacy rules.

Diagnostics fails or slowness affects every userSubmit the Chromebook for support with the test result, device asset number, and the conditions under which the slowdown occurs.

Copy-and-paste support request

Subject: Chromebook remains slow after basic troubleshooting Device asset number: [asset number] Date/time and class activity: [details] Websites or apps open: [names] Approximate number of tabs: [number] Restart completed: [yes/no] High-usage task or extension observed: [name/details] Managed extension involved: [yes/no/unknown] Available storage, if checked: [amount] Diagnostics CPU or memory result: [result] Other students affected: [yes/no and approximate number] Please review device performance and applicable managed policies. No student password is included.

Official guidance

Chromebook Will Not Turn On or Has a Black Screen

SDLA Quick Fix Idea · Chromebook

The Chromebook Will Not Turn On or the Screen Is Black

Determine whether the display is simply dim, the battery is deeply discharged, or the device needs hardware support without guessing from the charging-light color.

Teacher

The Chromebook appears to be off or the screen is completely black. How can I tell whether this is a brightness, charging, or hardware problem?

Quick Fix

Stop immediately if the battery or case is swollen, unusually hot, smells unusual, shows liquid damage, or the charger is frayed or damaged. Disconnect power if it is safe to do so, move students away, and follow district safety procedures.

Do not rely on one light color

Charging indicators vary by Chromebook model. Record whether the light is on, off, blinking, or changes when the charger is connected. An orange light is common on some models, but it is not universal.

Work through these steps in order and test after each one.

  1. Rule out a screen that is simply too dim

    Press the Brightness Up key several times. Look closely for a faint image. Disconnect any dock, adapter, or external monitor, then press Power once and check the built-in display again.

  2. Check the power connection
    • Use the district-approved charger for that Chromebook model.
    • Seat the connector firmly at the Chromebook and at the power adapter.
    • Test the wall outlet with an approved device or move to a known-working outlet.
    • Inspect the charging port and cable without inserting tools.
  3. Allow time for a deeply discharged battery

    Leave the Chromebook connected to power for at least 30 minutes. Avoid repeatedly trying to start it during that interval. After 30 minutes, press Power once and wait for a response.

  4. Try the hardware reset

    If the Chromebook still does not start and there is no safety concern, hold Refresh, tap Power, and release Refresh when it starts. Google notes that hardware resets might affect some files in Downloads.

  5. Know when to stop

    Submit the device for support if there is no charging indicator, the light blinks unexpectedly, the device starts but the display remains black, the issue returns after unplugging, or a known-good approved charger does not help. Do not Powerwash or attempt recovery unless technology staff directs it.

The screen appears after Brightness UpThe Chromebook was powered on but the backlight was dimmed. Restore a comfortable brightness and confirm the top-row keys respond normally.

It starts after chargingLet the device reach a usable charge before class. If deep discharge happens repeatedly, report the battery condition rather than treating each occurrence as a one-time fix.

Lights appear but the screen stays blackDisconnect accessories and submit a ticket. This can indicate a display, firmware, or hardware problem that requires device-specific support.

No lights or responseTry a known-working approved charger if policy allows, record the result, and send the Chromebook to technology support.

Copy-and-paste support request

Subject: Chromebook will not power on or has a black screen Device asset number: [asset number] Chromebook make/model: [if visible] Safety concern observed: [none / heat / swelling / damage / other] Brightness Up attempted: [yes/no and result] Accessories or dock disconnected: [yes/no] Approved charger and known-working outlet tested: [yes/no] Charging time: [minutes] Indicator light: [off / solid / blinking / color if visible] Refresh + Power attempted: [yes/no and result] Please inspect the battery, charging system, and display. No student password is included.

Official guidance

Restore a Chromebook’s screen and keyboard settings

SDLA Quick Fix

Restore a Chromebook’s screen and keyboard settings

Use these reversible keyboard shortcuts when a Chromebook’s display, browser, window layout, accessibility mode, or keyboard input suddenly looks or behaves differently.

Teacher

A student’s Chromebook screen is enormous, sideways, split, speaking aloud, or typing the wrong characters. How can we return it to normal without erasing anything?

Quick Fix

Match the symptom to the smallest reversible fix. Most accidental changes affect only browser zoom, display size, window position, an accessibility toggle, or keyboard language.

Start here

Four quick checks

  1. Ask what changed. Is it one webpage, the whole screen, the keyboard, or spoken feedback?
  2. Try the matching shortcut. Do not press several unrelated combinations at once.
  3. Confirm the result. Open another tab or app to see whether the change was page-specific or system-wide.
  4. Escalate with details. Record the symptom and shortcuts already tried if the problem remains.

Screen and window layout

When the screen is too large, too small, sideways, or rearranged

The Refresh/Rotate key is the circular-arrow key on the Chromebook’s top row. The Fullscreen key usually shows a rectangle or corner marks.

Only one webpage is too large or too small

Ctrl+0

Resets the current website’s browser zoom to its normal level.

Everything—including tabs and the shelf—is too large or too small

Ctrl+Shift+0

Restores the Chromebook’s default display resolution and interface size.

The screen is sideways or upside down

Ctrl+Shift+↻ Refresh

Rotates the display 90 degrees. Repeat until the screen is upright.

The browser fills the entire screen and its controls disappeared

Fullscreen ⛶

Press the top-row Fullscreen key to leave or enter fullscreen mode.

The current window is small or floating

Alt+=

Maximizes the current window.

A window is stuck on one side of the screen

Alt+=

Maximizes a snapped window. Use Alt + [ or Alt + ] when you intentionally want to dock it left or right.

Accessibility display and speech

When magnification, contrast, or spoken feedback appears unexpectedly

Depending on the keyboard, the key may be labeled Search or Launcher. It is commonly located where Caps Lock appears on other keyboards.

The entire screen is magnified and follows the pointer

Ctrl+Launcher+M

Toggles the full-screen magnifier.

An enlarged strip appears at the top of the screen

Ctrl+Launcher+D

Toggles the docked magnifier.

Colors look inverted or unusually high contrast

Launcher+Ctrl+H

Toggles high-contrast mode.

The Chromebook speaks menus, controls, and page content

Ctrl+Alt+Z

Toggles the ChromeVox screen reader.

Accessibility safeguard: Magnification, high contrast, and ChromeVox may be intentional supports. Ask the student and check applicable classroom accommodations before turning an accessibility feature off.

Keyboard input

When letters, capitalization, or symbols are wrong

Everything is typed in capital letters

Launcher+Alt

Toggles Caps Lock on or off.

Keys produce unexpected letters or symbols

Ctrl+Space

Returns to the previously used keyboard language or layout.

The correct keyboard language still is not selected

Ctrl+Shift+Space

Cycles through the keyboard languages configured on the Chromebook.

You are unsure what a Chromebook shortcut does

Ctrl+Launcher+S

Opens the Chromebook’s built-in keyboard shortcut viewer.

Browser and window recovery

When a page, tab, or app appears to be missing or frozen

A tab was closed accidentally

Ctrl+Shift+T

Reopens the most recently closed tab or browser window.

A webpage is frozen or incomplete

Ctrl+R

Reloads the current page.

A normal reload still shows stale or broken content

Ctrl+Shift+R

Reloads the page without using its cached content. Unsaved work on the page may be lost.

An open app or window seems to have disappeared

Alt+Tab

Cycles through open windows so you can return to the missing app.

If the shortcut does not solve it

Capture the right details for support

  • Restart the Chromebook normally and test the symptom again.
  • Note whether the problem affects one webpage, one app, or the entire device.
  • Record the Chromebook asset tag, affected website or app, and the shortcut already attempted.
  • Note whether an external monitor, touchscreen, or alternate keyboard is connected.
  • If an accessibility feature returns after sign-in, ask support to check synchronized accessibility settings and managed-device policies.

Copy-and-paste support request

A Chromebook still shows [describe the screen, keyboard, or browser symptom] after we tried [shortcut or restart]. The problem affects [one page / one app / the whole device]. Device asset tag: [asset tag]. Website or app: [name]. External display or keyboard connected: [yes/no]. We confirmed that disabling an accessibility feature [would/would not] conflict with a student accommodation.

Official help

Verify shortcuts and accessibility settings