Battery swelling, burning smell, or unusual heat
Stop using the computer. Disconnect external power only when that can be done safely, then use the manufacturer or a qualified hardware specialist.
All guides
Computer Repair
Computer won’t turn on or boot: is it power, the screen, Windows, or the drive?
A blank screen does not always mean the computer has no power. Note whether lights or fans come on, a manufacturer logo appears, or Windows begins loading. Those clues help distinguish power, display, startup, and storage trouble. Do not open the computer or begin a reset before considering the condition of the drive and any files without a backup.
Guide updated
Check the symptoms before changing the setup.
Power, fan activity, screen output, and where startup stops help separate power, display, Windows, and drive problems.
Start with the last reliable clue
Which of these four startup states matches the computer?
Note the last thing the computer does: no response, a blank display, a startup screen, or a usable desktop. Do not reset it to find out which problem you have.
- State 1
Nothing happens
What to observe: After checking a known-working outlet and the computer’s normal power lead, note any charger light, case light, fan, or startup sound.
Type of help: No response usually needs an on-site power-path check, or the manufacturer when warranty coverage applies.
- State 2
Lights or fans, black screen
What to observe: Note whether the monitor has power, which input is selected, whether a dock or external display changes the result, and any beep or blink pattern.
Type of help: Use an on-site display and hardware diagnostic; a remote session cannot start before the computer shows a usable desktop.
- State 3
Logo, loop, or error
What to observe: Record the exact logo, loop, recovery, or error screen only if it contains no private information or recovery key, then note what changed recently.
Type of help: Use a startup or Windows diagnostic; choose the device or organization vendor when warranty or management controls apply.
- State 4
Desktop, then freeze
What to observe: Note when the freeze begins and whether the computer stays stable long enough to protect current work and confirm an existing backup.
Type of help: A stable desktop may allow remote triage; repeated crashes or drive warnings belong on the on-site or data-recovery path.
Stop now
Stop testing if there is physical damage or a risk of losing files.
Liquid exposure
Do not power it on again or use heat to dry it. Keep ordinary troubleshooting paused and use the appropriate hardware or manufacturer route.
Clicking or grinding
Stop repeated power-on attempts. If the files matter, ask a data-recovery specialist before normal repair work.
Irreplaceable files with no verified backup
Do not run repair tools, initialize the drive, reset the computer, or reinstall Windows before getting recovery advice.
Choose the right kind of help
Remote, on-site, vendor, and data recovery solve different problems.
Remote
The computer reaches a usable desktop, connects to the internet, and stays stable long enough for an approved session.
On-site
There is no power, a black screen, an early startup loop, a dock or monitor question, or uncertain physical hardware.
Vendor / manufacturer
Warranty, battery swelling, liquid or impact damage, managed business equipment, or specialized hardware work is involved.
Data recovery
A drive clicks, grinds, disappears, or holds irreplaceable unbacked-up data that further testing could put at risk.
Details to include in a repair request
Send the model and symptoms, not passwords or files.
Useful details are the device model, visible lights or sounds, the exact non-sensitive screen, recent changes, and whether an existing backup matters.
Do not send passwords, MFA codes, BitLocker or other recovery keys, private files, or sensitive screenshots.
Nothing here authorizes a reset, reinstall, format, firmware change, drive repair, or opening the device. Diagnosis, recovery planning, and explicit approval come first.
Facts checked July 14, 2026
Check Microsoft’s recovery instructions before proceeding.
Recovery tools can change files, apps, settings, or access. Read the current Microsoft guidance and check your backup before choosing one.
Detailed checklist
Open the startup and data-protection checklist.
Open this when you need the BitLocker, no-boot-device, update-loop, backup, and specialist details.
Detailed checklist
Open the startup and data-protection checklist.
Open this when you need the BitLocker, no-boot-device, update-loop, backup, and specialist details.
Common symptoms
- Nothing happens: no lights, fan, startup sound, or image appears when you press power.
- Lights or fans start, but the built-in display or monitor stays black.
- A logo appears, then Windows loops, shows an error, opens recovery, or never reaches sign-in.
- The computer reaches sign-in or the desktop, then freezes, crashes, or becomes too unstable to use.
Quick checks
- Stop using the computer if you notice a swollen battery, burning smell, unusual heat, liquid exposure, repeated clicking or grinding, or irreplaceable files with no verified backup. Unplug external power when it is safe to do so and arrange the appropriate professional help.
- If nothing happens, confirm the wall outlet or surge protector works, seat the normal charger or power cable firmly, and disconnect a dock or nonessential accessories. Do not open the case, substitute an incompatible charger, or probe internal power parts.
- If lights or fans start but the screen is black, check brightness, the monitor's power and selected input, and whether a dock or external display is hiding the picture. Record any blink code or beep pattern instead of repeatedly forcing shutdowns.
- If a logo, boot loop, blue screen, Automatic Repair screen, or update message appears, photograph the exact wording or stop code and note what changed recently. Disconnect nonessential USB devices, but do not keep interrupting updates or run a factory reset as a test.
- If the desktop appears and then freezes, protect current work and back up important files while the computer is stable enough. A one-time normal restart may help, but repeated crashes, drive warnings, or worsening behavior need diagnosis before cleanup or upgrades.
- A BitLocker recovery screen is an ownership and encryption checkpoint, not proof that the files are gone. Retrieve the key through the owner's approved Microsoft or organization account on a trusted device; do not send the key through a booking form, text, email, or report.
- A no-boot-device message can mean a setting, connection, failed drive, or storage problem. If the drive is missing, making unusual sounds, or holds irreplaceable unbacked-up data, stop experimenting and ask about data-recovery options before repair attempts.
- Keep passwords, MFA codes, BitLocker or other recovery keys, private files, and sensitive screenshots out of the booking request. Share the device model, lights or sounds, exact last screen, recent changes, backup importance, ZIP code, and preferred time instead.
When to call
- Choose remote triage only if the computer can reach a usable desktop, connect to the internet, and stay stable long enough for an approved diagnostic session.
- Choose an on-site diagnostic when there is no power, a black screen, a dock or monitor question, a startup loop, or uncertainty about which physical component is involved.
- Use the manufacturer, an authorized repair provider, or an appropriate hardware specialist for warranty work, battery swelling, liquid damage, burning smells, cracked hardware, soldering, or board-level repair.
- Ask a data-recovery specialist before normal repair when a drive clicks or grinds, disappears, contains irreplaceable unbacked-up files, or further power-on attempts could reduce recovery chances.
How Tech Genie helps
Need help working through these checks?
We can investigate the symptoms, explain the findings, and carry out the work you approve. Unresolved issues and provider referrals are included in the service notes.
Document the power, display, dock, peripheral, startup-screen, Windows, update, storage-health, and backup clues that can be checked without invasive hardware work.
Determine whether the issue needs remote support, an on-site diagnostic, a manufacturer or hardware referral, data recovery, or a cost-effective replacement and transfer plan.
Explain the likely next step and request approval before resets, account changes, drive work, paid parts, data movement, or other changes that could affect files or recovery options.
FAQ
Questions about this problem.
Does a computer that will not boot mean my files are gone?
No. A power, display, update, or Windows startup problem does not automatically mean the storage has failed. Recovery still cannot be guaranteed, so stop repeated testing when the drive makes unusual sounds, disappears, or holds irreplaceable files without a backup.
Can remote support help if the computer will not turn on?
Usually not if the computer cannot reach a stable desktop and internet connection. Remote triage can work when Windows loads and stays usable; no power, black-screen, and early-boot problems usually need an on-site, vendor, or specialist path.
Should I reset Windows from the recovery screen?
Not as a diagnostic shortcut. A reset can remove apps, settings, or data and can make recovery planning harder. First record the exact screen, confirm backup status, and understand whether the problem is Windows, storage, encryption, or hardware.
Can Tech Genie bypass BitLocker or recover a missing key?
No. BitLocker protects the owner's data, and Tech Genie does not bypass encryption or guarantee recovery. The owner or authorized organization must retrieve an available recovery key through its approved Microsoft, work, school, or documented account path.
Keep troubleshooting
Related troubleshooting guides.
Slow Windows PC
Find out whether startup apps, low storage, memory pressure, or a failing drive explains the slowdown before spending on upgrades.
Read guide 3 min
Windows 10: what now?
Check Windows 11 eligibility, device health, and essential apps before choosing an upgrade, ESU, or a replacement PC.
Read guide 9 min
Home office setup
A dropped call, flickering monitor, and missing printer may have different causes. Test each part of the desk setup.
Read guide 3 min