If you are a Windows Vista user and facing black screen problem during startup, here is an hotfix to fix the issue.

When you start a computer that is running Windows Vista or Windows Server 2008, sometimes it stops responding at a black screen early in the startup process. According to Microsoft support page, the issue occurs because of a deadlock between a thread in Windows NT File System driver (Ntfs.sys) and a thread in the Autochk.exe program.

How to fix Vista black screen at startup:

1. Download the hotfix from Microsoft.
2. Install the hotfix and then reboot your PC.
Note that this hotfix applies to Windows Vista and Windows Server 2008 only.

Download Hotfix (Thanks to Softpedia)