Monthly Archives: February 2015

How to Speed Up Free Download Manager

Free Download Manager is a great Internet speed accelerator. With this free download manager and accelerator, you can download files and complete web sites up to 6 times faster than before. It will protect you from malicious downloads – you can read other user reviews right from the download window. Here is an instruction to tell you how to speed up it.

1. Start your Free Download Manager.

2. Go to “Options” from the top menu.

3. Click the “Traffic usage mode” tab and choose “Heavy Mode”.

4. Select “Unlimited KB/s” under “Restriction of Traffic.”

How to Reset a PostgreSQL Password

PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. Here is an instruction to tell you how to reset PostgreSQL password to keep its security.


1. Click “Start” and type “cmd.exe” in the Search bar to open a new command terminal on the server running PostgreSQL.



2. Type “psql -h localhost” without quotes into the command window so that you could access the PostgreSQL database from the root account of the computer running the server.

3. Run the command “ALTER USER <name> WITH PASSWORD ‘password’;.” Replace name and password with the new one you want. Now you’ve successfully reset the PostgreSQL password.

How to fix the error message “Video not available, cannot find MJPG decompressor” occurred in IrfanView?

IrfanView is a fast and compact image viewer/converter. The interface of IrfanView is clear and intuitive, which makes it easy with use for beginners and powerful for professionals. However how do we solve the error occurred during the running processes? Here is the instruction to tell you how to fix the error message “Video not available, cannot find MJPG decompressor” when you play some AVIs.


1. Click on the “Options” tab on the top menu, select on “Properties/ Settings”.


2. Go to ‘Video/ Sound’ and activate the option: ‘Use DirectShow for playing(use Pause/ Arrow keys as controls)’.


3. Click “OK” to confirm.

4. If this method doesn’t work, you could install the MJPG (Motion JPEG) video codec.