If you miss the deadline, prepare to cough up $120.

By Alexandra Mondalek
Updated July 29, 2016
Today Is Your Last Chance for a Free Windows 10 Upgrade
Credit: James D. Morgan/Getty Images

This article originally appeared on Money.

If you’re a PC user who hasn’t been worn down by incessant upgrade notifications on your Windows-operated device, it may be time to succumb to the pressures of the “install now” pests.

A year after its public release, Microsoft will start charging $120 for its currently free Windows 10 upgrade (and $200 for its Windows 10 Pro upgrade) if you install after Friday.

What do you need to download the new operating system? You must be running Windows 7 or later, and you must meet the system requirements (including enough storage space on your computer).

So what do you get if you upgrade? A lot, says Wired. The tech mag praised the Windows upgrade’s features, including “Cortana, Microsoft’s capable virtual assistant, Microsoft Edge, a new browser that puts anguished Internet Explorer memories far in the rear view.” An added bonus: The interface (that is, how the system actually looks to users) won’t be all that different than Windows 7—good news to the change-averse.

Wired isn’t the only tech outlet to praise the system. PC Mag gave Windows 10 its editors’ choice award and a 4.5 of 5-star rating.

Windows 10 has generally been successful for Microsoft since it was released last year (75 million people downloaded it a month after launch and Microsoft says 300 million users are now operating Windows 10.)

Once the undisputed personal computing titan, Microsoft faces increasing competition from rivals Apple, Amazon, and Google, and has fought back by by bolstering its mobile systems—including offering Windows 10 on smart phones—well before the release of its upgraded PC operating system. It’s a tough road though. While Google and Facebook both reported strong quarterly earnings this week, driven in large part by higher ad sales on mobile devices, on Thursday, Microsoft announced it would cut 2,850 jobs, largely because of struggling mobile operations.