Windows 10 was announced Monday, accompanied by a free upgrade notification on Windows 7 and 8.1 PCs.

The free upgrade was noted on the task bar of users that need to reserve it before its launch on July 29, according to The Verge.

Here's the caveat though: There are a few things that are going away.

Although it will only affect a small, select number of users, they will be losing their Windows Media Center, Hearts card game and Windows 7 gadgets. And for those who still cling to their old floppy discs, new drivers will be needed to go along with the new software.

For those who like watching their DVDs on their PC, it is still possible to do that. But users will need separate playback software for this task.

Although a DVD option will be coming later this year, as announced by Microsoft manager Gabriel Aul via Twitter, those who are upgrading early will need to download VLC to use it.

What some will find especially annoying, perhaps, is that the new software will automatically be downloading updates for your computer. The only exception to this would, of course, be the Pro and Enterprise editions, which will defer in the way the exception is handled. But Windows Home 10 users will not have any other option. The downloads and updates are handled automatically with Windows 10.

Limitations in the new software will also be present in some of Windows 10's more anticipated features, which include Cortana and Windows Hello.

Cortana, a personal digital assistant, will only be available in the U.S., U.K., China, France, Italy, Germany, and Spain when it initially launches. No word yet how that is expected to expand in the future. But for domestic users, that will not be an issue.

But the biometric passwords system, which allows users to be identified by certain physical attributes such as facial recognition and fingerprint, will require an infrared scanner and a fingerprint scanner to work on Windows Hello.

Specifications and requirements for this new software are available on the Microsoft website. The standards are fairly minimal, which includes 1 GB of Ram, a 1 GHz processor, 16 GB of disk storage for 32-bit OS and 20 GB of storage on 64-bit. It also needs a 1024 x 600 display and a DirectX9 or later graphics card with WDDM 1.0 driver.

See a teaser video for the new software here.