Diagnose first — which startup problem do you have?

Three different problems all look like "Windows is broken" but have very different fixes. Match yours first:

What you see	Likely cause	Skip to fix
BIOS logo, then black screen forever	Boot sector / drive failing / BIOS	Fix 5, then Fix 6
Windows logo with spinning dots, never finishes	Bad update / driver / corrupt system file	Fix 2, Fix 3, Fix 4
Boots fully but takes 3–5 minutes to be usable	Bloated startup apps / failing HDD	Fix 1, Fix 5
"Your PC ran into a problem" blue screen on every boot	Driver / hardware fault	Fix 4, Fix 5
"Bootmgr is missing" or "No bootable device"	Boot loader corruption	Fix 6, then Fix 2

Get into Safe Mode — the fix-everything-else trick

Most fixes below need Windows to be at least partially running. If your PC won't boot at all, force Safe Mode by interrupting boot three times:

Hold the power button to force-shut-down as soon as the Windows logo appears.
Power on. As soon as the logo shows, force shut down again.
Repeat once more. On the 3rd boot, Windows enters the Recovery Environment.
Choose Troubleshoot → Advanced options → Startup Settings → Restart → press 4 for Safe Mode (or 5 for Safe Mode with Networking).

Fix 1: Disable startup apps before boot

If Windows boots fully but takes ages to be usable, this is almost always startup apps.

Ctrl+Shift+Esc opens Task Manager.
Startup apps tab. Disable everything with "High" startup impact you don't recognise.
Restart normally. Boot should be 60–80% faster.

Fix 2: Run Startup Repair

Microsoft's automated repair handles most "Windows logo + spinning dots forever" cases.

Force into Recovery (3 interrupted boots, as above).
Troubleshoot → Advanced options → Startup Repair.
Wait. It can take 15–45 minutes — don't interrupt.
If it succeeds, reboot normally and update Windows fully.
If it says "Startup Repair couldn't repair your PC" — move to Fix 3.

Fix 3: SFC and DISM (corrupt system files)

System File Checker and DISM repair the underlying Windows install. Run from Recovery (Command Prompt) or Safe Mode (admin Command Prompt).

Open Command Prompt as administrator (in Recovery: Troubleshoot → Advanced → Command Prompt).
Run, in order, waiting for each to finish: DISM /Online /Cleanup-Image /RestoreHealth sfc /scannow
If you're in Recovery (no online OS): DISM /Image:C:\ /Cleanup-Image /RestoreHealth /Source:C:\Windows\WinSxS /LimitAccess sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows
Restart. Often resolves the spinning-dots-forever pattern after a bad update.

DISM and SFC won't run?

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Fix 4: Roll back the killer driver

If the problem started right after a Windows update or driver install, undo it.

Roll back a specific driver

Boot into Safe Mode.
Right-click Start → Device Manager.
Expand Display adapters, Network adapters and Storage controllers — right-click each → Properties → Driver tab → Roll Back Driver.

Uninstall a recent Windows update

In Recovery: Troubleshoot → Advanced → Uninstall Updates → Uninstall latest quality update (or feature update).
Reboot — Windows skips that update for 7–14 days.

Fix 5: SSD health check

If the same boot fails repeatedly with no clear cause, the SSD may be dying.

From Safe Mode (or another working PC with the drive plugged in), download CrystalDiskInfo.
Run it. The SSD should show Health Status: Good.
If it shows Caution or Bad — the drive is failing. Stop using it for writes and clone it ASAP.
Look for Total Host Writes. Anything over the drive's TBW rating means it's near end-of-life.

Don't ignore SMART warnings

A failing SSD can become unreadable in days, taking your data with it. The clone-while-it-still-works window can be 24–72 hours after symptoms appear.

Fix 6: Check BIOS / boot order

"No bootable device" or sudden post-update boot loops are sometimes caused by the BIOS forgetting which drive is the boot drive.

Restart and immediately tap Del, F2 or F12 (depends on PC make).
In BIOS find Boot → Boot Order.
Confirm your Windows SSD/M.2 is at the top.
If you see "Windows Boot Manager" prefer it over the raw drive on UEFI systems.
Save and exit. (F10 on most BIOSes.)

While you're in BIOS, also confirm Secure Boot is on (Windows 11 needs it) and TPM 2.0 is enabled.

Fix 7: Reset Windows (keep your files)

Last resort that doesn't lose your files: a clean Windows reset.

Boot into Recovery.
Troubleshoot → Reset this PC → Keep my files → Cloud download (uses fresh Windows files).
Wait 60–90 minutes. Apps removed, but Documents, Desktop and personal files stay.
After reset, run all Windows updates, then reinstall apps.

Always back up first

"Keep my files" is reliable but not 100%. Connect an external drive and copy C:\Users\YourName off the machine before clicking Reset. Can't boot? A Perth tech can do this via a USB rescue drive.

Frequently Asked Questions

How long should Windows 11 take to boot in 2026?

On a modern SSD-equipped PC: 10–20 seconds from power-on to desktop. On an SSD with too many startup apps: 30–60 seconds. On a spinning HDD: 1–3 minutes is "normal" but unacceptable — upgrade to SSD.

Will rolling back a Windows update lose my files?

No. Update rollback only removes the Windows OS update files. Documents, photos, programs and accounts are untouched.

Can you fix Windows 11 boot problems remotely?

Sometimes — if Windows boots to Safe Mode with Networking, we can take over remotely. If it won't boot at all, we need to be on-site to use a USB recovery drive.

Should I upgrade Windows 11 to 24H2 to fix this?

Don't — upgrading on top of a broken install almost always makes things worse. Fix the current install (or do a clean reset) before any feature update.

How much does Perth Windows 11 boot repair cost?

Most boot repairs are flat-rate $140–$220 on-site, including SSD clone if needed. SSD parts extra at-cost. No fix, no fee.

Windows 11 Stuck or Slow? We'll Fix It Today.

Same-day on-site boot diagnosis, SSD clones and Windows resets across Perth metro — flat-rate, no fix no fee.

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