I'm using windows 8.1 pro, 64 bit edition. I installed windows 8.1 on a new computer.
Firstly, I used Avast free edition on my computer. When I downloaded the small installer and ran it, it immediately prompted me to uninstall that antivirus. After that, I restarted my computer and waited, but nothing happened. I checked with task manager, and in the background process there was BitDefender Setup Downloader (32-bit).
After nothing happened for about 10 minutes, I stopped that task, and disabled it from the startup. Then I restarted again, double clicked the installer, and nothing happened again. So I downloaded the offline installer from this forum (the 450+ Mb one), but it turned out the same.
I have tried unregister and reregister the windows installer service, check my registry for pending installation, and re-download the installation package from other sources, but none worked.
Is this the problem with my computer? Or with the installer? Please reply ASAP.
Thanks a lot.