How to Delete All Data on a Computer ?

Deleting information from your computer is easy if you don’t mind deleting everything. This is not optional unless you are actually preparation on reinstalling windows and starting from scratch!

1. Download a program called Secure Erase from the internet and save it to a floppy disk or CD-R. You may need to unzip the file first.

2. Access BIOS during the boot stage before the computer gets to the OS screen. This can be accomplished by pressing whatever key the computer tells you to when it says “”Press F2 to enter start-up”, for example.

3. Change the boot order so that the computer boots from either the CD drive or floppy drive, depending on which drive you used for your Secure Erase program.

4. Exit BIOS. The DOS prompt should appear once the computer has started up.

5. At the system/DOS prompt type: “hdderase” to start the program. The Secure Erase menu should appear. Decide from Secure Erase or improved Secure Erase if the option appears.

Instructions : Do not do this unless you are totally sure that you want to erase your data. and This will only work on computers built in 2001 or after.

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Tags:access, bios, boot, boot stage, CD-R, Computer, DATA, delete, Disk, dos prompt, ERASE, howto, program, Unzip, Windows

How to Perform Disk Defragment Windows Vista from the Command Line

The Windows Vista Disk Defragmenter has been improved over the Windows XP version, but you can’t see or use all the best features unless you run it from the command line. By default the defrag tool only defragments files smaller than 64 MB, because according to Microsoft’s benchmarks, fragments of this size, which already consist of at least 16000 contiguous clusters, have a negligible impact on performance. If you still want to defrag files larger than 64 MB too, you need to use the -w switch mentioned below to defragment files of all size.

Disk Defragmenter does not defragment files in the Recycle Bin, or files which are in use. Disk Defragmenter will not degragment Bootsect dos, Safeboot fs, Safeboot csv, Safeboot rsv, Hiberfil sys, Memory dmp, or the Windows page file. Using the -b parameter will optimize these boot files. (more…)