Advice on in place upgrade of Windows 7 to Windows 8

I have two machines running Windows 7 Ultimate 64bit, one workstation and one laptop. Both about two years old but fairly powerful and with SSD disks. (But not with UEFI BIOS)

I am considering upgrading them to Windows 8 Enterprise 64bit. (All installations are legal. I have media and purchased Product Keys. RTM, not preview. Same language: English.)

My main concern is whether to do a scratch installation or an in place upgrade.

Obviously an in place upgrade would be less work and faster, thus better - if it works well.

Anyone with experience of such an in place upgrade? Does it work? How well, generally? How much is preserved?

Do programs continue to work as before? Device drivers?

Any confusing/irritating artifacts left by the upgrade?

Do you get the same/similar speed improvements as scratch installations?

Solution 1:

I recommend against doing an upgrade unless you don't have much on your current machine.

Keep all your docs in OneDrive or the cloud. Keep your secrets in a vault, if you have ever used file level encryption with EFS, just stop and make you know how to export your private keys and practice decrypting them. Or just decrypt them all now.

I've never done an upgrade before, but this time I had too many apps and settings to lose.

There were some minor problems. I needed to upgrade my display drivers, had to reinstall a program (the same version), and there was a problem with the Windows Phone SDK for which the Action Center sent me to one of Aaron Stebner's WebLog's.

The unfixable problem, for now, is that I lost Windows Media Center. I didn't consider that it would disappear.

That's it though, I think you should try it. You could always reinstall from scratch.

Solution 2:

I did the in place upgrade using Windows 8 professional. It worked fairly well. The installer requested I uninstall three programs, among the Microsoft Security Essentials. I did so.

All programs seem to be working still.

I have not had to upgrade any device drivers manually.

Authentec finger print recognition software stopped working, I disabled it. I can still log in using fingerprint though, so no apparently the software did not do anything useful.

The performance has improved slightly, but not greatly. It now takes 4.4s to sleep instead of 6.5s. Waking takes 4.9s instead of 9.1s

The only clearly noticable problem I have is that if I explicitly put the computer to sleep, the built in screen is black when I start up. I have to go into hibernation instead. That is irritating, but it seems that I am not alone with that problem.