If you have Office 365 Home Premium and want to use it on PCs where it isn’t installed, you can. We call it Office on Demand. As long as you’re connected to the internet from a PC running Windows 7 or later, you can use Office on Demand to create documents or to keep working on documents you’ve saved to SkyDrive. Office on Demand streams full versions of Word, Excel, PowerPoint, Access, and Publisher so you can work online.
Don’t have Office 365 Home Premium yet? Get it here.
If you’re using Office 365 Enterprise or Small Business, see Use Office on Demand for information that’s tailored to your version of Office.
Create new documents online
To get started, go to My Office and sign in. Then click the application you want to use.
Work on your documents from any PC
The stuff you’ve saved to SkyDrive is on My Office too. So, if you want to finish working on something you started on another computer, go to My Office and click the document name under Recent documents. If you’ve organized your work using folders, they’ll show up under Recent folders.
After you’re done, save your work back to SkyDrive. When you log off the computer, no one else will be able to see the applications or documents you were working on.