2015 January

Why PCs Crash

10 Reasons Why PCs Crash 10 Reasons Why PCs Crash Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Ctrl-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications." You have just been struck by the Blue Screen of Death. Anyone who uses Microsoft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening? 1 Hardware conflict The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device. For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself. If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ nu…

Automation error: Drawing is Busy when trying to save a DWG file

Automation error: Drawing is Busy when trying to save a DWG file Automation error: Drawing is Busy when trying to save a DWG file Issue: Intermittent errors appears when saving DWG files with AutoCAD 2012 and 2013 with the message; Automation error: Drawing is busy AutoCAD then crashes or hangs losing all work from last save. Causes: This issue is related with the acaddoc.lsp, acad.fas or acad.vlx virus issues, files that appear duplicated in all folders from where you open dwg files. Solution: First thing to do is to check if your computer contains any virus, usually it's linked to the acaddoc.lsp and acad.fas stored in all folders from where you open the dwg files: 1. Search for all these files and delete all of them. 2. Next, check the article, How to detect and remove the Acad.vlx virus, if the file that appears copied in all folders is not one of the specified in the solution, you need to update …

What is Active Directory?

What is Active Directory? What is Active Directory? An active directory is a directory structure used on Microsoft Windows based computers and servers to store information and data about networks and domains. It is primarily used for online information and was originally created in 1996 and first used with Windows 2000. An active directory (sometimes referred to as an AD) does a variety of functions including the ability to provide information on objects, helps organize these objects for easy retrieval and access, allows access by end users and administrators and allows the administrator to set security up for the directory. An active directory can be defined as a hierarchical structure and this structure is usually broken up into three main categories, the resources which might include hardware such as printers, services for end users such as web email servers and objects which are the main functions of the domain and network. …