Google Chrome

Keyboard Shortcuts
Ctrl+Shift+Delete - Opens the Clear Browsing Data dialog.

For the full list click here

Reset Google Chrome to Factory Defaults
Chrome doesnt store any Windows Registry, instead it creates a file 0KB in size called First Run at the root of the install directory, if this file isnt present Chrome will launch the "first time wizard" For Windows XP

C:\Documents and Settings\UserName\Local Settings\Application Data\Google\Chrome\Application

For Windows Vista/Windows 7

C:\Users\UserName\AppData\Local\Google\Chrome\Application

Delete Browsing History (Cache, Temp files)
Clear download history Empty the cache Delete cookies Clear saved passwords
 * 1) Click the Tools menu. (the wrench in the upper-right corner)
 * 2) Select Options.
 * 3) Click the Under the Hood tab.
 * 4) Click Clear browsing data…
 * 5) Check the boxes for the types of information you wish to delete.
 * 6)    Clear browsing history
 * 1) Click Clear Browsing Data when ready.

Check for proxy server

 * 1) Click the Tools tools menu menu.
 * 2) Select Options.
 * 3) Click the Under the Hood tab.
 * 4) In the "Network" section, click Change proxy settings. This will open the Internet Properties dialog.
 * 5) Click LAN settings
 * 6) Deselect everything to disable proxy