http://hddscan.com/

http://lifehacker.com/399102/hddscan-performs-hard-drive-diagnostics

From <https://superuser.com/questions/409864/what-does-cpu-1-parked-mean-in-the-windows-resource-monitor>

From <https://coderbag.com/product/quickcpu>

easily change the DNS servers

From: http://www.nirsoft.net/utils/regscanner.html

From: http://www.nirsoft.net/utils/regscanner.html

RegScanner is a small utility that allows you to scan the Registry, find the desired Registry 
values that match to the specified search criteria, and display them in one list. After finding 
the Registry values, you can easily jump to the right value in RegEdit, simply by double-clicking 
the desired Registry item. You can also export the found Registry values into a .reg file that can 
be used in RegEdit.

From: http://www.cgsecurity.org/wiki/TestDisk

TestDisk is powerful free data recovery software! It was primarily designed to help recover lost 
partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty 
software: certain types of viruses or human error (such as accidentally deleting a Partition Table). 
Partition table recovery using TestDisk is really easy.

From: http://www.icare-recovery.com/

Efficient Data Recovery Software
• Recover deleted files from most storage devices
• Restore deleted files emptied from recycle bin 
• Recover data from virus attack, damaged partition 
• Recover files lost without reason

From: http://www.mremoteng.org/home

It allows you to view all of your remote connections in a simple yet powerful tabbed interface.

List telnet to smtp servers connection for testing

From: https://www.wireshark.org/

Wireshark is the world's foremost network protocol analyzer. It lets you see what's happening on 
your network at a microscopic level. It is the de facto (and often de jure) standard across many 
industries and educational institutions.

and analyzer with a friendly GUI.

From: https://code.google.com/p/ostinato/

Ostinato is an open-source, cross-platform network packet crafter/traffic generator and analyzer 
with a friendly GUI. Craft and send packets of several streams with different protocols at different 
rates. For the full feature list see below.
Ostinato aims to be "Wireshark in Reverse" and become complementary to Wireshark.

From: http://dottech.org/best-free-windows-software/#computer

* SOFTWARE CATEGORIES

• Cleaning and Maintenance
• Communication
• Files & Documents
• Work & Productivity
• PDF Tools
• Privacy and Security
• Multimedia
• Network/Internet Tools
• Miscellaneous

From: http://toolbarcleaner.com/?src=4792&gclid=CJ_pnaiO0rwCFcXm7AodNBMACg

  Toolbar Cleaner removes more than 1,000,000 unwanted toolbars, apps, add-ons, and 
  plug-ins per month including Ask, Alot, Babylon, Bing and MSN Toolbars.

open files

From: http://www.nirsoft.net/utils/opened_files_view.html

  OpenedFilesView displays the list of all opened files on your system. For each opened file, 
  additional information is displayed: handle value, read/write/delete access, file position, 
  the process that opened the file, and more... 
  Optionally, you can also close one or more opened files, or close the process that opened these files.
  

http://news.cnet.com/8301-13554_3-9867426-33.html

http://technet.microsoft.com/en-US/sysinternals/

http://www.bleepingcomputer.com/tutorials/list-services-running-under-svchostexe-process/

http://www.techrepublic.com/blog/windows-and-office/decipher-svchost-processes-in-windows-with-svchost-viewer/4121/

http://svchostviewer.codeplex.com/

http://blogs.technet.com/b/yongrhee/archive/2012/06/28/how-to-troubleshoot-service-host-svchost-exe-related-problems.aspx

http://www.microsoft.com/security/sir/strategy/default.aspx#!malwarecleaning_explorer

From: http://www.scootersoftware.com/beta.php

From: http://www.deltopia.com/compare-merge-sync/overview/topten/

From: http://www.araxis.com/merge/features.en

From: http://www.tomsitpro.com/articles/Disk2VHD-VirtualBox-laptop-data_recovery,2-418.html

  A functioning hard drive from the dead system
  A Desktop system to serve as a virtual host
  A method to connect the hard drive to the virtual host
  Microsoft’s free P2V tool, disk2vhd
  Oracle’s VirtualBox, a free desktop virtualization hypervisor

  Sysinternals: http://technet.microsoft.com/en-us/sysinternals/ee656415.aspx

* http://www.runtime.org/driveimage-xml.htm

Data Recovery Software

Runtime Software's data recovery software will help you rescue your lost or inaccessible files from any imaginable data recovery disaster.

  — TestDisk & PhotoRec vs Recuva vs Pandora Recovery vs Aidfile vs Puran vs Undelete 360
  Read more at http://dottech.org/113185/windows-review-best-free-file-data-recovery-
  programs/#wTbFXr45eeXDF8Pk.99
  All the programs reviewed here were tested by attempting to recover files and all were successful 
  at retrieving the files. Now… here are the best free file and data recovery tools for Windows.
  Read more at http://dottech.org/113185/windows-review-best-free-file-data-recovery-
  programs/#wTbFXr45eeXDF8Pk.99

From: http://angryip.org/w/Download

  Linux Mac Windows
  

From: http://www.colasoft.com/download/index.php#freeware

  Colasoft MAC Scanner is a free scan tool for scanning IP address and MAC address. It can automatically 
  detect all subnets according to the IP addresses configured on multiple NICs of a machine and scan the 
  MAC addresses and IP addresses of defined subnets as your need. It is provided to the public free of 
  charge for personal or any non-commercial use.

From: https://www.softperfect.com/products/networkscanner/

SoftPerfect Network Scanner is a free multi-threaded IPv4/IPv6 scanner with a modern interface and 
many advanced features. It is intended for both system administrators and general users interested 
in computer security. The program pings computers, scans for listening TCP/UDP ports and discovers 
shared folders, including system and hidden ones.

In addition, it can retrieve practically any information about network computers via WMI, SNMP, HTTP, 
NetBios and has a bunch of other features. It can also resolve host names and auto-detect the local 
and external IP address range. To assist with network administration, it supports remote shutdown and 
Wake-On-LAN.

From: http://www.steffengerlach.de/freeware/index.html

  Scanner - This tool uses a sunburst chart to display the usage of your hard disk 
  or other media. The chart shows all major files and folders from all directory levels at once. 

From: http://funk.eu/smf/#Version_Archive_Anchor2

  is the fastest duplicate files finder and a multi-dimensional
 
   - file searcher,
   - file copier / mover,
   - file deleter / eraser,
   - and duplicate previewer…

From: http://www.easyduplicatefinder.com/

Easy Duplicate File Finder helps you find and remove duplicate files on your PC. It finds true 
duplicates by content (instead of file name and size alone). You can scan multiple folders/drives 
at the same time, and the search can be restricted by using a scan mask and/or specifying a size 
condition. Lists of duplicates can be exported to HTML.

From: http://www.belarc.com/free_download.html

The Belarc Advisor builds a detailed profile of your installed software and hardware,
network inventory, missing Microsoft hotfixes, anti-virus status, security benchmarks,
and displays the results in your Web browser. All of your PC profile information
is kept private on your PC and is not sent to any web server. 

From: http://www.techrepublic.com/blog/five-apps/five-free-apps-that-collect-pc-information/

http://www.belarc.com/free_download.html

http://support.microsoft.com/kb/308549

http://www.nirsoft.net/utils/product_cd_key_viewer.html

http://www.lookinmypc.com/

http://www.piriform.com/speccy

From: http://www.pcwintech.com/shanes-toolbox

What is Shane's Toolbox? For all my little apps I make to help with a problem or to fix something, I add to this page (All of these tools are FREE).

http://www.pcwintech.com/drive-speedometer

hard drive tesing

From: http://www.iometer.org/

Youtube: https://www.youtube.com/watch?v=XkOUGbsnGn0

Iometer is the controlling program. Using Iometer’s graphical user interface, you configure the workload, 
set operating parameters, and start and stop tests. Iometer tells Dynamo what to do, collects the resulting 
data, and summarizes the results in output files. Only one copy of Iometer should be running at a time; it 
is typically run on the server machine.

http://www.hdtune.com/index.html

35.00

HD Tune is a hard disk utility with many functions. It can be used to measure the drive's performance, scan for errors, check the health status (S.M.A.R.T.), securely erase all data and much more.

From: http://www.netpower.fr/smartmontools

  I wrote this tool primary because of my work as IT staff, wanting to monitor user computers that 
  don't come with SMART alert software like servers do.

From: http://www.dban.org/

  Darik's Boot and Nuke, also known as DBAN /ˈdiːbæn/, is an open source project hosted on SourceForge.[2]
  The program is designed to securely erase a hard disk until data are permanently removed and no longer recoverable,
  which is achieved by overwriting the data with pseudorandom numbers generated by Mersenne twister or ISAAC. 
  The Gutmann method, Quick Erase, DoD Short (3 passes), and DOD 5220.22-M (7 passes) are also included as options
  to handle data remanence

http://techlogon.com/2012/05/02/my-top-10-free-file-and-system-utilities/

They’re all free for home users (most also offer paid versions which may add extra features/support but my reviews are of the free versions).

From: http://www.shouldiremoveit.com/install-thankyou.aspx

  Should I Remove It? is a very simple but extremely powerful Windows application that helps users, both
  technical and non technical, decide what programs they should remove from their PC. This typically
  includes finding and removing all sorts of crapware and bloatware such as adware, spyware, toolbars,
  bundled unwanted applications as well as many forms of malware. The program is very lightweight and
  extremely fast. Should I Remove It? simply scans your computer for all its' installed programs and then
  ranks what should be removed by leveraging the wisdom of the crowd (and of course our technical experts)
  to determine what should not be installed.