Remove data completely from hard drive

When you delete a file, the operating system does not really remove the file from the disk; it only removes the reference of the file from the file system table. The file remains on the disk until another file is created over it, and even after that, it might be possible to recover data by studying the magnetic fields on the disk platter surface.

Before the file is overwritten, anyone can easily retrieve it with a disk maintenance or an undelete utility.

Eraser is an advanced security tool for Windows which allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns. 


http://eraser.heidi.ie/download.php

Capture and interactively browse the traffic running on a computer network with WIRESHARK

Wireshark is a network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It has a rich and powerful feature set and is world's most popular tool of its kind. It runs on most computing platforms including Windows, OS X, Linux, and UNIX. Network professionals, security experts, developers, and educators around the world use it regularly. It is freely available as open source, and is released under the GNU General Public License version 2.

It is developed and maintained by a global team of protocol experts, and it is an example of a disruptive technology.

Features


Wireshark has a rich feature set which includes the following:

Deep inspection of hundreds of protocols, with more being added all the time

Live capture and offline analysis

Standard three-pane packet browser

Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others

Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility

The most powerful display filters in the industry

Rich VoIP analysis

Read/write many different capture file formats: tcpdump (libpcap), Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer® (compressed and uncompressed), Sniffer® Pro, and NetXray®, Network Instruments Observer, NetScreen snoop, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others

Capture files compressed with gzip can be decompressed on the fly

Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platform)

Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2

Coloring rules can be applied to the packet list for quick, intuitive analysis

Output can be exported to XML, PostScript®, CSV, or plain text


http://wiresharkdownloads.riverbed.com/video/wireshark/introduction-to-wireshark/

Microsoft Internet Explorer 10 will only install on Windows7

Microsoft confirmed to Computerworld that this was no accident, with a spokesperson saying "Windows Vista customers have a great browsing experience with IE9, but in building IE10 we are focused on continuing to drive the kind of innovation that only happens when you take advantage of the ongoing improvements in modern operating systems and modern hardware." IE10 will only install on Windows 7, leaving Windows XP and Windows Vista users out in the cold.
Whatever the real reason, this is a pretty raw deal for Windows Vista users. Not as bad as the Ultimate Extras farce, but bad all the same. It also means that when Microsoft released Internet Explorer 10, it is likely that it will support just one operating system, with a second, Windows 8, due later in 2012. The company is already being criticized for supporting a mere two operating systems with Internet Explorer 9. Cutting back to one, leaving Windows Vista users out in the cold, is hard to defend.

Related articles

• Internet Explorer 10 Drops Vista Support (tech.slashdot.org)