Computer File Recovery

It is quick and easy to recover files using computer file recovery utilities.  You can find both commercial

Computer File Recovery

and free Open Source file recovery utilities.  If the file was accidentally deleted you should protect the drive by not installing or copying files to the drive.

Undeleting Files

When a file is deleted, only the name is modified to allow new files to be copied over the deleted file.  The deleted files are still on the hard drive and can be recovered using file recovery utilities.  It would be best to run the computer from a different drive or CDROM.  This way you prevent the accidental over writing and destroying the files.  You should first install on a separate drive either a trial commercial version or free Open Source utility to see if the utility can find and recover the file.  There are good free utilities that will restore most deleted files.

Using a Live CD

Live CD’s run an operating system from the CDROM and do not affect the hard drive.  The CD allows you to scan the hard drive and recover files quickly and copy them to an external device.   Live CD’s are usually Linux distributions, but there are some Windows PE versions that provide a small Windows XP environment.

Hard Drive Failure

If you have a hard drive failure or hardware component failure you will need the help of a recovery service center.  They will charge several hundred dollars depending on the component that failed and the amount of data to be recovered.

The ComputerRepairTraining website has additional information that you might find useful.

January 16th, 2010 | Tags: , , , , , , , , | Category: Computer File Recovery | Leave a comment

Computer Network Training

The study of computer network concepts or Computer Network Training is to prepare for certification and employment as a network tech.  The CompTIA organization has a Network+ life-

OSI Model

OSI Model

time certification that can help you to get a job in the exciting IT (Internet Technology) field.  One of the first areas of study is the seven layer OSI Model.  The better you understand the OSI Model the better you will understand computer networking.  I would strongly suggest that you get very familiar with this model, the associated protocols, functions, equipment, and PDU’s at each layer.

PDUs (protocol data units)

PDUs are data packets associated with each level of the OSI Model.  Layer 1 the Physical layer the PDU is called a Bit.  Layer 2 the Data Link layer the PDU is called a Frame.  Layer 3 the Network layer the PDU is called a Packet.  Layer 4 the transport layer the PDU is called a Segment.  Above layer 4 the PDU is called Data.

The study of  Computer Network Training and Computer Repair Training can lead to some very rewarding careers.  But remember the OSI Model is the key to understanding how networks function.

December 12th, 2009 | Tags: , , , , , , , , | Category: Computer Training | Leave a comment

Recovery Console Repair Commands

Windows XP recovery console repair commands are just like the old familiar DOS commands plus a few new ones.recoveryconsole

The following commands can be used with the Recovery Console:

attrib – changes attributes of files or directories.

batch – will execute commands contained in a text file

bootcfg – boot file (boot.ini) configuration and recovery command

chdir – changes the current directory or displays name of current directory

chkdsk -  checks disk and displays status

cls – clears screen

copy – copies files

del – deletes files

dir – displays files and directories

disable – disables service or device driver

dispart – can manage partitions on hard drive

enable – can start service or device driver

exit – exits recovery console

expand – extracts files

fixboot – can write a new partition boot sector to partition

fixmbr – repairs/replaces master boot record

format – formats a drive

help – displays all commands

listsvc – lists all services and drivers

logon – allows you to logon

map – displays drive mapping

md – creates a directory

more – displays text files

netuse – used to map network shares to drive letters

ren – renames files

rd – removes directories

set – displays and sets variables

systemroot – used to set current directory to root

type – displays text files

Windows recovery console commands can be very helpful for repairing and restarting a computer that will not boot.

The Computer Repair Training website has some additional information you might find helpful.

November 1st, 2009 | Tags: , , , , , , , | Category: Recovery Console | One comment
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