The firm also said that Windows 10 was now active on over 200 million devices.
However, some people have questioned whether the data tracking is a threat to privacy.
Since Windows 10 was launched, Microsoft has been tracking information about how those with the OS are using it.
Until now though, relatively little has been known about what data is being collected.
The company blog listed a range of figures, including:
- 44.5 billion minutes spent by users in the Microsoft Edge browser across Windows 10 devices
- 2.4 billion questions asked to virtual assistant Cortana
- 30% more Bing search queries per Windows 10 device versus previous versions of the OS
- 82 billion photos viewed with the Photo app
- More than four billion hours spent playing PC games
Microsoft also reported that Windows 10 continued to be the fastest growing version of Windows, outpacing the adoption of both Windows 8 and Windows 7.
Security expert Prof Alan Woodward told the BBC he was interested to know the long-term plans for the data.
“[This information] might be collected for one purpose, but how long will it be stored for? What else are they going to use it for?” he said.
“As soon as it goes outside the EU it’s no longer protected by things like the UK’s Data Protection Act.”
Recently, Microsoft announced it would be opening UK data centres for corporate clients in a move the firm hoped would address privacy watchdogs’ concerns about “data sovereignty”.
However, it is not clear where data relating to the company’s own operating system is transmitted and stored.
When asked about this, a Microsoft spokesman declined to comment.
‘Walking in blind’
Prof Woodward also suggested that users of the new OS may not be fully aware of how comprehensively it is tracking their activity.
“I’ve noticed it because I’ve been installing it a lot recently. The default is for them to track a whole lot of things about usage and send details back to Microsoft,” he said.
“I think some people are walking into it blindfolded, they don’t necessarily realise what’s going on.”
A spokesman for Microsoft declined to comment on the issue but provided a link to a blog and a web page on Windows 10 and privacy.
The web page states that the data collection is intended to “make your device more personal and delightful to you”.