Toshiba qosmio f60-11c freeze problems at startup and randomly during operation

Did the problem coincide with adding software (for example upgrading to Win7) or have you added memory ?

Otherwise look at hard drive issues -- though these should have shown up when Win7 was formatting the drive.

The fan will come one more frequently in warmer weather -- but check you're not blocking the vents or there's crud inn them.

This is a new laptop, only 3 months has passed. There must not be a crud in.

And it is doing updates as usual. I do not think updates are the reason.

But I did some investigation about heat issue. I found similar problem in toshiba's site resulting from a crude heat sink. Now I'm using laptop without load nearly.

It's results OK now but I do no get how it is freezing at startup?

If it's only 3 months old, these are questions for Toshiba.