A lot of you are starting to see messages like this; it's a free offer to upgrade to Windows 10 by Microsoft. The question people often ask now is why is the upgrade free? I do not know.
Currently, there are two editions of Windows 10 that are being offered free to Windows 7 & 8 users. Those with Windows 7 Home Premium SP1 or Windows 8.1 will be able to upgrade to Windows 10 Home. Those on Windows 7 Professional, Windows 7 Ultimate, and Windows 8.1 Pro systems will be offered Windows 10 Pro. There is a one-year limitation on getting this free upgrade which I find strange.
If you are on Windows 8, you probably cannot wait for jump on to 10.
There are several issues that need to be addressed before we can recommend anyone to move to Windows 10 for our software. For those of you that remember the problems with the earlier release of windows we saw such as the printer manufacturers were not ready for the changeover as a result people suddenly reported problems with their printers, for example, the statements were not printing the top correctly or pages were being skipped. There were also strange things happening in networks and modems. In my experience, it usually takes a few months for us to really test it, and in the meantime it takes about 12 months for Microsoft to get it working right.
My advice is that if you are looking to upgrade, I would suggest you have at least 2 GM RAM and 60 GB harddrive on your computer despite what Microsoft says.
Update: My advice is reserved your copy and then wait for user feedback before installing it. The offer seems too good to be true.