Check the memory modules on the motherboard to ensure they're firmly in place. They have a release clip on either end of their sockets, but be gentle! You can also try disconnecting the internal drives one at a time and restarting the PC after each disconnection to determine whether one of the drives is causing the problem.
The Microsoft Support site describes how to check your hard disk for errors , how to check for a memory problem , and how to diagnose common device-driver problems. The system powers on, but Windows won't start Press F8 immediately after turning the machine on, then choose Last Known Good Configuration from the Advanced Boot Options menu that appears. For more on Vista's advanced startup options including safe mode , see the article on the Microsoft Support site.
The site also offers information on using Last Known Good Configuration. If you're unable to access the advanced boot options, use a Vista boot disc to access Startup Repair.
NeoSmart Technologies provides downloadable Vista recovery boot discs. Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion.
What to do when a Windows PC won't start Just because your system doesn't power up or load Windows as expected doesn't mean the machine is ready for the recycle bin. Dennis O'Reilly. Where Windows XP might have stopped in its tracks when faced with this problem, modern versions of Windows will try to automatically run Startup Repair.
If everything looks fine in the BIOS, you may want to insert Windows installation or recovery media and run the Startup Repair operation. This will attempt to make Windows bootable again. You can also attempt to manually fix Windows bootloader problems using the fixmbr and fixboot commands. If Windows seems to start booting but fails partway through, you may be facing either a software or hardware problem.
If the computer encounters errors while attempting to perform startup repair or reinstall Windows, or the reinstall process works properly and you encounter the same errors afterwards, you likely have a hardware problem. If Windows crashes or blue screens on you every time it boots, you may be facing a hardware or software problem.
To test this, boot your Windows computer in safe mode. If the computer is stable in safe mode, try uninstalling any recently installed hardware drivers, performing a system restore, and scanning for malware. This will reset your computer back to its clean, factory-default state. If you have important files that will be lost and want to back them up before reinstalling Windows, you can use a Windows installer disc or Linux live media to recover the files.
Following these steps should fix the vast majority of Windows boot issues—at least the ones that are actually fixable. The dark cloud that always hangs over such issues is the possibility that the hard drive or another component in the computer may be failing. Image Credit: Karl-Ludwig G. Poggemann on Flickr , Tzuhsun Hsu on Flickr. Use Google Fonts in Word. Customize the Taskbar in Windows The two other keys that might work are F2 and Escape.
If you don't see any Fast Boot entry, your computer was made before as they did not include a Fast Boot option. They're useful for recovery because they work even when Windows doesn't. Accessing these settings requires launching your computer in BIOS mode.
Once in BIOS mode, check the following settings:. Secure Boot on the wrong setting can cause your computer not to start. Furthermore, disabling Secure Boot may stop you from upgrading to Windows The reason Secure Boot causes problems is that it's designed to protect computers against malware. Because it checks the drivers and hardware loaded by Windows at startup, any driver or hardware component not recognized by the system will generate an error at boot. Secure Boot settings are located under Boot options.
You can turn it on or off. Malware is a major cause of an unbootable computer. The best method for dealing with malware is a bootable antimalware rescue disk. I prefer Kaspersky's free disk as it only requires downloading the image and using Etcher to image a flash drive or other writable disk. Etcher works in Windows, macOS, and Linux. You can then boot into the afflicted computer using the rescue disk and remove malware preventing the computer from booting.
Download: Kaspersky Rescue Disk Free. It might still be possible to boot into the Command Prompt. Using this interface, you can perform more troubleshooting procedures. You'll need to have Windows 10 on a bootable disk or USB drive to perform the procedure, so use another computer to set that up before you get started. To boot to the Command prompt, start your computer. While it's initializing, watch out for details of a combination of keys that will allow you to enter the BIOS.
This information is typically delivered alongside the vendor logo. Your choice here will depend on where your copy of Windows 10 is located. Again, the specifics of this process may vary from one system to another, so consult the on-screen instructions.
Next, insert the disk or drive containing Windows 10 into your system, save your configuration, and restart your PC. Enter the requested language, currency, and input preferences, then select Repair your computer on the next screen.
Recovery screen. Forgot UEFI password screen. Surface shows a black screen and Windows doesn't start. Surface shows a logo screen and then turns off. A blue Choose an option screen with options like Use a device and Troubleshoot. If Windows starts: Install the latest Surface and Windows updates to help prevent future problems.
For more info, see Update Surface firmware and Windows. On the Choose an option screen, select Troubleshoot. Windows will try to find and fix the problem. When you perform a system restore, Windows will restore your Surface to an earlier point in time when Windows was working correctly. Keep my files: Removes apps and settings but keeps your personal files. Remove everything: Removes all your personal files, apps, and settings.
Make sure that you have access to the product keys and installation files for any desktop apps for example, Microsoft Office that you plan to reinstall after the reset. This includes desktop apps you installed from websites or USB drives. If Choose an option appears again, choose Continue. Go to Send my Surface in for service. See Surface shows a logo screen and Windows doesn't start for troubleshooting steps.
You may then see a blue Automatic Repair or Recovery screen. If your Surface freezes at the Automatic Repair screen or shortly after you select an option, see Creating and using a USB recovery drive for Surface for solutions you can try. On the Automatic Repair screen, select Restart. On the Automatic Repair screen, select Advanced options. On the Choose an option screen, select Continue to exit the options screen and continue to Windows.
If the Automatic Repair screen appears again, select Advanced options. A system restore will restore your Surface to an earlier point in time when Windows was working correctly. Solution 5: Reset your Surface. On the Choose an option screen , select Troubleshoot. When the battery icon appears, it means the battery is critically low. If you already have the power supply plugged in, the problem may be with the power supply or battery.
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