HD Doctor Blog

Sometimes we need to buy some computer parts online, here I offer a list of computer parts online stores, you can compare their prices before you buy.

http://www.microcenter.com/
Thousands of products to buy: desktops, laptops, monitors, build your own PC parts, upgrades, digital imaging, printing supplies, portable devices, audio equipment, software, video games, movies, tech books, plus repair service, store hours, directions, and employment opportunities.

http://www.tigerdirect.com/
A good Deals on Computers, Computer Parts, Computer Components, Netbooks, Electronics and more.

http://www.newegg.com/
Newegg.com offers computer parts, laptop computers, digital cameras, electronics and more with fast shipping and top-rated customer service. 

http://www.bestbuy.com/
Buy’s online source for electronics, televisions, DVD players, home audio, car audio, computers,…

Data protection is crucial for protecting your business’s continuity. If your only data backup is on a computer, and the hard disk fails or is damaged by a power surge, your business data is gone. And having paper copies of business data isn’t adequate data protection; what if your business premises burn to the ground or experience severe flooding? Once again the data you need to carry on your business could be irretrievably lost.

For adequate data protection, you need to establish a data backup system that follows these three steps:

• archive business data regularly;
• create data backups on reliable media;
• keep updated data backups in a secure, off-site location.

The basic rule for business…

When disasters strike unprepared companies the consequences range from prolonged system downtime and the resulting revenue loss to the companies going out of business completely,  yet many IT shops are not prepared to deal with such scenarios. How would you recover your data and keep the business running after an unforeseen disaster?

The key to surviving such an event is a business continuity strategy, a set of policies and procedures for reacting to and recovering from an IT-disabling disaster, and the main component of a business continuity strategy is a disaster recovery plan (DRP).

Step 1: Risk Analysis
The first step in drafting a disaster recovery plan is conducting a thorough risk analysis of your computer systems.…

The reason the data takes up more space has to do with the cluster sizes used to store data. Microsoft operating systems using the FAT32 file system use varying cluster sizes depending on the size of the partition.

The following chart gives a breakdown of the partition/cluster size relationship using FAT32

A cluster is the smallest unit used by the operating system to store data. Each piece of…

Recover your lost data from various storage devices and file systems.

Price: Free to try (Recovery-disabled); $69.95 to buy
Operating system: Windows 2000/XP/Vista;
Version: 4.3.6

Publisher’s description:
EASEUS Data Recovery Wizard is an Advanced data recovery software to do format recovery and recover deleted files emptied from Recycle Bin or lost data due to partition loss or damage, software crash, virus infection, unexpected shutdown or any other unknown reasons. It will do an amazing job when the data loss disaster strikes, especially when you want to recover data from formatted drive. Data Recovery Wizard supports hardware RAID and hard drive, USB drive, SD card, memory card, etc. It provides the comprehensive data recovery solution for computer…

There are many free hard drive diagnostic softwares available to help you determine what, if anything, is wrong when you suspect there may be a problem with a hard drive.

Some of these diagnostics tools may be built in to your operating system already while others are available from hard drive manufacturers.

1. Seagate SeaTools
Seagate SeaTools is free hard drive testing software that comes in two forms for home users:

• SeaTools for DOS supports Seagate or Maxtor drives and runs independent from your operating system on its own CD or disk, making it highly reliable.
• SeaTools for Windows is a program that installs on your Windows system. You can do basic and advanced

…

Before discussing what a boot sector virus does, let’s first take a look at what a boot sector is. A floppy disk or hard drive is comprised of many segments and clusters of segments, which (in the case of a hard drive) may be separate by partitions. There has to be a way to find all the data spread across these segments, hence the boot sector operates as a virtual rendition of a library’s Dewey Decimal system. Each disk also has a Master Boot Record or (MBR) that locates and runs the first of any necessary operating system files needed to facilitate operation of the disk. When a disk is read, it first seeks the MBR, which then passes…