Instaling problem

Kamil,
We regret for the inconvenience caused to you. Is there any other Antivirus program like McAfee or AVG Antivirus program installed on your system?
If so, please uninstall it and then we would request you to run the AVG remover tool to remove all the remnants of the failed installation. Click this link http://aa-download.avg.com/filedir/util/AVG_Remover.exe to download and run your AVG remover tool, once the tool is run, your PC will automatically reboots. After the restart, please check if a folder with name AVG Remover is created under C: and remove it.  Now click this link http://www.avg.com/us-en/download to download your AVG program, run the downloaded file to start the installation process and follow the instructions on your screen. Complete the installation and restart your computer. Please, feel free to let us know if you require any further assistance. Thank you.

Kamil,
We regret for the inconvenience caused to you. Is there any other Antivirus program like McAfee or AVG Antivirus program installed on your system?
If so, please uninstall it and then we would request you to run the AVG remover tool to remove all the remnants of the failed installation. Click this link http://aa-download.avg.com/filedir/util/AVG_Remover.exe to download and run your AVG remover tool, once the tool is run, your PC will automatically reboots. After the restart, please check if a folder with name AVG Remover is created under C: and remove it.  Now click this link http://www.avg.com/us-en/download to download your AVG program, run the downloaded file to start the installation process and follow the instructions on your screen. Complete the installation and restart your computer. Please, feel free to let us know if you require any further assistance. Thank you.

show error number 0xc0070426 please help