How to Recover Files From a Computer That Will Not Start

If your computer will not start, you may still be able to recover your files without wiping the drive. First, stop repeated restart attempts if you hear clicking, grinding, or other unusual sounds. Then try the least-invasive steps: check power and connections, determine whether the computer is failing to turn on or merely failing to load Windows or macOS, and copy your files before attempting repairs or reinstalling the operating system.

This guide covers Windows PCs and Macs. The exact menus vary by computer, but the general order is the same: protect the data, identify the failure, try recovery tools, and use another computer or a professional service when the drive itself may be damaged.

Before recovering files, identify what “will not start” means

A computer can fail at several different points. Press the power button and note what happens:

• No lights, fan noise, or display: The issue may involve the outlet, charger, battery, power supply, motherboard, or display.
• Lights or fans, but no picture: The computer may have a display, memory, graphics, or hardware problem. The files may still be intact.
• A logo appears, but Windows or macOS does not load: Startup files, an update, a drive problem, or another software issue may be involved.
• A message asks for a password or recovery key: The drive may be encrypted. Do not erase it or guess repeatedly without locating the correct account or recovery key.
• The computer starts but freezes or crashes: Copy the most important files immediately if you can reach the desktop.

1. Make safe, simple checks

Disconnect nonessential accessories such as USB drives, docks, printers, memory cards, and external displays. A faulty accessory can interfere with startup. Leave only the power cable, keyboard, mouse, and display connected as needed.

For a desktop, verify that the power cable is firmly connected and that the power strip or surge protector is switched on. Test the wall outlet with another device. For a laptop, connect the charger directly to a known-working outlet and allow it to charge for a while. If the battery is removable, shut the computer down, disconnect power, remove the battery, hold the power button briefly, reinstall the battery, and try again. Follow the manufacturer’s instructions if the battery is internal.

If you can reach the login screen or desktop, do not spend time troubleshooting first. Connect a separate storage device or use a secure network location and copy irreplaceable documents, photos, videos, and other personal files. Start with the files you cannot recreate.

2. Try built-in recovery tools without erasing the drive

Windows

If Windows repeatedly fails to start, it may display the Windows Recovery Environment automatically. You can also reach it by interrupting startup several times, although repeated power interruptions are not ideal if the drive may be failing. When the recovery menu appears, choose Troubleshoot, then Advanced options.

• Startup Repair: Attempts to correct problems that prevent Windows from loading.
• System Restore: Returns system files and settings to an earlier restore point without intentionally removing personal files, although it is not a substitute for a backup.
• Uninstall Updates: May help if the problem began immediately after a Windows update.
• Command Prompt: Can be used by experienced users to inspect and copy files, but incorrect commands can make the situation worse.
• Startup Settings or Safe Mode: May allow Windows to load with fewer drivers so you can copy files or remove a recently installed problem.

Do not choose options labeled Reset this PC, Remove everything, or anything that formats the drive until your files are backed up or you have confirmed they are not needed.

Mac

On a Mac with Apple silicon, shut down the Mac, then press and hold the power button until startup options appear. On an Intel-based Mac, turn it on and immediately hold Command-R until the Apple logo or a spinning globe appears. From macOS Recovery, you can use Disk Utility to inspect the internal drive and run First Aid.

First Aid may correct some file-system problems, but it cannot repair every failing drive. If the disk appears in Disk Utility, copy data before attempting more extensive repairs when possible. Reinstalling macOS can sometimes preserve personal data, but you should still treat it as a later step, not a backup method.

3. Recover files when the operating system will not load

If the computer powers on but cannot reach the desktop, a bootable USB drive can provide a temporary operating environment. A Windows installation or recovery drive can expose repair tools, and a Linux live USB can sometimes let you browse and copy files. You must create the bootable media on another computer and select it from the affected computer’s boot menu. The key for that menu varies by manufacturer and may appear briefly on screen.

Once the temporary environment loads, connect a separate drive with enough free space. Copy files from common folders such as Documents, Desktop, Pictures, Videos, Downloads, and any custom folders you created. Windows user folders are usually under C:\Users\YourName; macOS user files are generally under /Users/YourName.

Do not save recovered files back to the problem drive. If the drive is deteriorating, writing to it can overwrite data or accelerate failure. Copy the most valuable material first, and open several copied files on another computer to confirm they are usable.

4. Check backups and cloud storage

Before taking the computer apart, check whether your files already exist elsewhere. Look at the online storage account used on the computer, such as a cloud-sync folder, and confirm that synchronization had completed before the failure. Also check an external backup drive, Windows File History, Windows Backup, macOS Time Machine, or a full system image if one was configured.

Cloud storage may contain only files that were selected for synchronization, and some folders may have been set to “online only.” An external backup may also be older than expected. Verify dates and open a few files rather than assuming a backup is complete.

5. Know when encryption or a damaged drive changes the solution

Modern computers often use encryption, including BitLocker on Windows and FileVault on macOS. Encryption protects the files but means a recovery environment may ask for a password, account authentication, or a recovery key. For Windows, check the Microsoft account associated with the computer or any printed or saved recovery-key record. For a Mac, use the Apple Account or recovery key associated with FileVault when prompted.

If the drive is missing from Disk Utility or the Windows recovery tools, reports an incorrect capacity, disconnects repeatedly, or makes clicking, grinding, or beeping sounds, stop experimenting. Do not initialize, format, defragment, or run repeated repair scans on a drive that may be physically failing. If the files are important and no verified backup exists, a reputable data-recovery service may be safer than do-it-yourself software. Recovery can be difficult, expensive, or unsuccessful, so ask about the evaluation process before authorizing work.

Common mistakes to avoid

• Do not reinstall Windows or macOS before copying needed files.
• Do not format a drive because a recovery tool says it must be initialized.
• Do not install recovery software onto the drive where the missing files are stored.
• Do not keep forcing power off during a possible hardware failure.
• Do not guess encryption keys or account passwords repeatedly.
• Do not assume a drive is healthy because it briefly appears in a menu.

How to reduce the risk next time

Use the 3-2-1 backup approach when practical: keep three copies of important data, on two different types of storage, with at least one copy stored separately from the computer. Turn on automatic backups, periodically confirm that they are running, and test restoring a few files. Keep account recovery information and encryption keys in a secure location that you can access when the computer is unavailable.

Also leave free space on the system drive, install operating-system updates when convenient, protect the computer from liquid and heat, and replace aging drives before they become the only place your files exist.

Frequently asked questions

Can I recover files if the screen is blank?

Possibly. Try a different display connection if appropriate, but do not assume the files are gone. The drive may be readable through a recovery USB, another compatible computer, or a professional service.

Will Startup Repair delete my files?

Startup Repair is intended to address boot problems rather than remove personal files, but no repair process replaces a backup. Copy files first when you have a way to do so.

What if I forgot my Windows or Mac password?

Account passwords and drive-encryption keys are not always interchangeable. Use the official account-recovery process and locate the device’s BitLocker or FileVault recovery information. Avoid bypass tools that may overwrite or expose your data.

The safest recovery order

Start with power and accessory checks, then use built-in recovery tools only when they do not erase data. If the operating system remains inaccessible, copy files with a bootable environment or restore them from a verified backup. When the drive is noisy, repeatedly disconnects, or is not detected, stop and consider professional data recovery. The most important rule is simple: protect the original drive and recover irreplaceable files before attempting a reset or reinstall.