IE 9 Ruined my PC

I D/L the new IE9, however, it was taking a very long time to install, then I got a failed to install message, and it left a link to MS support page.
Since I tried to install it my PC was taking a very long time to shut down. I decided to do a system restore, well all I got was a black screen and the cursor, I tried to reboot in safe mode same thing a black screen.
Luckily I had a Windows recovery Disk, I did a system restore, still a black screen, I did a start up recovery and that said there was no problem. I rebooted and hey presto!! my Pc was back to normal.
Why would IE9 cause this problem?
Will it happen again?

sygnus21 said:

I hve no ideal what happened to your system while trying to install IE9, but I can assure you there aren't reports if this happening. I honestly think something else was going on with your system when said problem happened. Try downloading the software again through a legit download site and install.

Let us know.

I tried 2 D/L sites as per MS support instructions.
How to solve Internet Explorer 9 installation problems

sygnus21 said:

Since you're running a 64-bit version of Window 7 you need to get the 64-bit download version of Internet Explorer.

I did.

Nem said:

I had same problem you could do what i did and get offline installer..

x86 Download

x64 Download

I tried that, same problem.
It took about 12 minutes to show the "did not finish installing" message.

Here's the problem IE9 has caused.