Back in July my Asus g73jh laptop (an older model but it's been working great for me) running Win7 started freezing up. Not Bluescreening, outright freezing. I took it to a local place, who originally said the hard drive was failing, but then told me motherboard had to be replaced. Ultimately the existing hard drive was cloned over to a newer, slightly bigger hard drive (I recognize cloning a failing hard drive has issues, but there's more to this) and the motherboard was replaced. It seemed to work out.
When I got it back however, I discovered something distressing. Windows Update, the index and troubleshooters no longer work, and I'm now unable to install certain new programs or drivers. Some programs even required me to reenter the product keys. I've been looking up and down the internet attempting to find a solution to these issues, and absolutely nothing I've tried has worked.
It got to the point it felt I should start over, then I discovered that the g73jh has a hidden partition used to reset it to a factory installation, which seems to have survived the cloning. After backing everything up, I went through with the factory installation setup via the f9 key, but when it finished, I discovered every problem I described above, is STILL THERE.
At this point I have absolutely no idea what might be causing this problem, or why it persists even when restoring the laptop to its factory installed state. Could the original hard drive have damaged both the existing and hidden partitions due to age? I have noticed that Windows Update and Index no longer working IS actually a recurring problem involved with cloning hard drives, but I've yet to find a working solution to this.
Any help would be very much appreciated here, this has been going on for way too long.