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Whenever you install something in Mac OS X then it gets installed from package files. Along with installing something from package files, a "Bill of Materials" file is stored in the package receipt file. These ".bom" files contain a list of the files installed by that package as well as the proper permissions for each file. But, in future, these permissions can get changed resulting in freezing or crashing of your Mac.

Windows Updates, as you know is a legitimate software update from Microsoft to make the operating system stable and secure for improved performance. By default the feature remains enabled, however, you have the option to configure it further. Set Windows to automatically install updates or get your permission prior to it. Generally, after Windows Update the system automatically shuts down due to the replacement of the Shut Down option in the Start menu with the "Install Updates and Shut Down" button. This phenomenon is sometime irritating.

Whether you love to play DOS games or want to use DOS for some other reason, you need to download the latest version as it supports both old and new DOS commands. Here is this tutorial for you to install DOS operating system.

As a Windows user, you love to install new software or games? Well, everyone does. But, have you suffered from the problems like PC slow down or random error messages while installing such stuff. These error messages are sometimes due to a missing or corrupt system. Also, incorrect Registry value can be another reason. Here we are to resolve the issue. With the help of this tutorial, you can become aware about the built-in feature of Windows 8 which can help you to reinstall or repair Windows quickly.

Installing Windows 7, the operating system with the most share across the globe, is simple and easy. However, you must ascertain the system compatibility, built-in-features pertaining to performance, troubleshooting and security to get the optimum use of it. Here comes a Windows 7 tutorial from Techvedic, a leading tech support vendor to ease your job.

Why it's a good idea to own a USB-to-SATA adapter The USB-to-IDE/SATA adapter the most indispensable tool in my PC repair kit. Just this weekend, it once again proved itself worthy of that title. In a nutshell, the adapter allows you to connect an internal hard drive to your PC-externally. What would an internal drive be doing outside your desktop or laptop? Funny you should ask. About a week ago, my media-center PC starting displaying this message during boot-up: "Hard drive failure imminent." And you know what? It was. In short order, the machine wouldn't boot at all. Long story short, I had to replace the drive, reinstall Windows, etc. But I wondered if I could salvage any/all of my recorded TV shows. To find out, I connected the old, non-booting drive (now "naked" outside the system) to a USB port via my adapter. Huzzah! The machine was able to read the drive and copy over the recordings. Except for the hassles (and expense) of actually replacing the drive, no harm done. There's another reason to keep one of these adapters on hand, and that's if you're planning to upgrade to a solid-state drive (SSD). Unless you buy a kit that comes with an adapter, you'll need one so you can image (i.e. clone) your existing drive to the new SSD. Then you'll remove the old drive, install the new one, and presto, you're back in business. (Much faster business: SSDs rock.) Unless you have a pretty old desktop or laptop, you can skip buying a USB-to-IDE/SATA adapter and just go for USB-to-SATA. At the same time, I recommend one that supports USB 3.0. You may not need it now, but it's a good bet your next PC will have USB 3.0 ports -- and that'll make for much faster copying between drives. Trust me: When the time comes that you need to upgrade or replace a hard drive, you'll be glad to have a USB-to-SATA adapter on hand. By-The Xpert Crew @ http://techvedic.com

Despite updated operating system, browser, browser add-ons, installed firewall, and acute computer security settings, clever viruses, spyware or Trojans may find loop-holes to slip into your system. Not only in terms of performance, but in terms of stability and security too, these malicious software push you on back-foot. What to do next?

Confronting errors with the new Microsoft Office installation? If yes, then you have reached the right page. Follow the below mentioned step-by-step instructions to uninstall Office 2003, Office 2007 or Office 2010:

Now, you can take your password along with you using the portable version of password manager. This program can run on your PC without installation and therefore can be launched from a flash drive.

After installing bunch of applications, the context menu gets cluttered. Thus, it is important to clean those applications.

It is really very irritating when Windows 7 or Vista changes the Sleep/Shutdown button into an "Install Updates and Shutdown" button. Here is a solution for this.

This hands-on class will teach you the basics of Linux, a powerful open-source operating system. You'll learn how to install Linux and use the file system, work with users, the bash shell and vi editor. This course uses Red hat Linux V5.

Firewall is an important part of computer security. And, you often get people selling you a new one. Windows always come with its solid firewall. This tutorial contains the answers of some important questions related to firewall security.

Forgot the password of your Windows PC administrator level account? This hampers your work a lot. This tutorial can give access to it.

The year 2013 witnessed some significant milestones in renewable power generation and transmission, inculding the opening of some of the world's biggest wind, solar and bio-gasification plants. Power-technology.com picks the ten biggest clean energy developments from 2013.

The year 2013 witnessed some significant milestones in renewable power generation and transmission, inculding the opening of some of the world's biggest wind, solar and bio-gasification plants. Power-technology.com picks the ten biggest clean energy developments from 2013. The London Array, the world's biggest offshore wind farm, at 630MW installed capacity was opened in July 2013.

Petronas Floating Liquefied Natural Gas - 2 (PFLNG - 2) Project involves the installation of a new FLNG facility at the deepwater Rotan Gas field located in Block H within the South China Sea, offshore Sabah.

Mildura Solar Power Station is a concentrating photovoltaic (CPV) project being built in Carwrap, south of Mildura in the state of Victoria, Australia. The project will use high performance solar cells used to power satellites. The plant was proposed to have an installed capacity of 100MW initially to reduce the annual greenhouse gas emissions by 396,000t.