How to Configure proxy and HomePage in Mozilla Firefox

Create user.js file. File should contain these lines:
user_pref(“network.proxy.type”, 4);
user_pref(“browser.startup.homepage”, http://my_new_home);

first line – detect proxy automatically
second line – set home page

Copy file user.js to:
“%ProgramFiles%\Mozilla Firefox\browser\defaults\profile” folder (for x86 systems) or in
“%ProgramFiles(x86)”\Mozilla Firefox\browser\defaults\profile” folder (for x64 systems).

Now new profiles for Firefox will use settings from user.js.


How to install Language Pack file in Windows 8

You can add additional language to your installation of Windows 8. You can do this with DISM command. It allows you to install Language Pack ( ). Download “mu windows 8 language pack” for your architecture (x64 or x86). Extract folder with your prefered language eg: “pl-PL” and install it with command:

dism /online /add-package /packagepath:C:\folder_where_you_extracted\pl-PL\

Restart PC and remember to change your Locale settings in Control Panel.

How to unlock all Windows 8 editions from Windows 8 ISO Image

Windows 8 ISO image contains Core and Pro editions. Windows 8 Setup doesn’t allow users to select which edition of the operating system they want to install.
To bypass this extract Windows 8 ISO Image create a file with following content:


Save the file as ei.cfg in Sources folder. Then create bootable ISO image with both Windows 8 editions.

A KMS Server can activate clients in multiple domains

One KMS server can activate KMS clients in multi-domain environment. You need to edit registry key called “DNSDomainPublishList” under “HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform” called “DNSDomainPublishList” on the KMS Server. Just add a list of domains in which the KMS Server should operate. One domain name per line. Then restart the “Software Protection” “sppsvc” service on your KMS Server. This will create _vlmcs SRV records under TCP node (DNS Server) of your DNS Domain.

My own Ethernet “splitter”

With an ethernet splitter, you can simultaneously connect two computers on one Ethernet cable.

Ethernet cable T568B
Pin 1 ==> Orange/White
Pin 2 ==> Orange
Pin 3 ==> Green/White
Pin 4 ==> Blue
Pin 5 ==> Blue/White
Pin 6 ==> Green
Pin 7 ==> Brown/White
Pin 8 ==> Brown

Prepare two cables

One side (PC1 and PC2)                       Second side (RJ45 Wall Outlet)

First Jack (for first PC)
Pin 1 (Orange/White)                           ==> Pin 1
Pin 2 (Orange)                                      ==> Pin 2
Pin 3 (Green/White)                             ==> Pin 3
Pin 6 (Green)                                        ==> Pin 6

Second Jack (for second PC)
Pin 4 (Blue)                                            ==> Pin 4
Pin 5 (Blue/White)                                 ==> Pin 5
Pin 7 (Brown/White)                              ==> Pin 7
Pin 8 (Brown)                                         ==> Pin 8

How to install the .NET Framework 3.5 on Windows 8

You can install .NET Framework 3.5 on Windows 8:
1. on Demand when prompt
2. in Control Panel (Turn Windows features on or off)
3. from installation media

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs

where /Source specifies the location of the files needed to restore the feature (e.g. the D:\sources\sxs directory).

Source: Microsoft MSDN

How to use the Netsh to export and import DHCP scopes

You can use Netsh.exe to import and export DHCP scopes on Windows Server. Active account must be a member of the local Administrators group.

Export examples:
netsh dhcp server \\servername1 export path_to_file

Import examples:
netsh dhcp server \\servername2 import path_to_file

Source: Microsoft Technet