It may be that some system files needed to boot the computer have been deleted or damaged or that the boot sector of the disc is damaged. To find out if this is the case, start the computer with a ...

Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

3 Windows OS Loader %SystemRoot%\system32\winload.exe %SystemRoot%\system32\winload.efi 4 Windows NT OS Kernel %SystemRoot%\system32\ntoskrnl.exe When you hit the ...

Microsoft has started automatically replacing expiring Secure Boot certificates on eligible Windows 11 24H2 and 25H2 systems. Secure Boot is a security feature that blocks malicious software (like ...

If you have enabled Hypervisor Platform (Hyper-V) using the Windows Features section, and the computer doesn’t boot after a reboot as requested by the setup process, then this guide will help you.

N.B.: Some laptops allow you to set the boot devices using a Windows application. Toshiba, for example, does this with some of their laptops. The application is either a standalone application or an ...

I have Windows 2000 and XP installed on separate partitions. I just made a FAT32 partition on the same drive and installed Windows 98. Of course it's NT aware so it didn't overwrite the boot sector of ...

In my last tutorial I introduced you to Windows 2000's Disk Probe, a utility that lets you modify almost anything on your system's hard disk on a sector-by-sector basis. Now it's time to start using ...

Comodo Internet Security couldn't start properly one day. I uninstalled and restarted. Then reinstalled but failed. It asked me to restart. I was no longer able to boot into Windows after that. When ...

Microsoft yesterday clarified the advice it gave users whose Windows PCs are infected with a new, sophisticated rootkit that buries itself on the hard drive’s boot sector. Several security researchers ...