Microsoft has again painted a grim picture for customers who remain on Windows XP and Office 2003 after it ends support for the old OS and suite in early April, but it’s unclear if the company is succeeding in its campaign to convince holdouts to upgrade.

In a blog post on Wednesday, Microsoft reiterated that consumers and businesses that stick with the products past the April 8 deadline will face severe security risks and be unable to take advantage of technical advances.

"Computers currently running Windows XP and Office 2003 won’t stop working on April 9, but over time security and performance will be affected,” reads the post.

Specifically, Windows XP PCs won’t be able to run many “newer” applications or work with new hardware due to unsupported drivers. Additionally, PCs running the OS will become easy prey to malware, because Microsoft won’t release new security updates and bug fixes for it, nor offer support services and technical content updates. Office 2003, on the other hand, can’t provide modern mobility and cloud capabilities, according to Microsoft.

Unsurprisingly the solution the company offers is for customers to adopt Windows 8.1 and Office 365, while acknowledging that in most instances PCs running Windows XP lack the hardware specs to run the new OS. “The majority of PCs running Windows XP are not capable of upgrading to Windows 8.1 due to the age of the hardware,” the post reads.

Windows XP remains quite popular despite its age—it was first released in 2001. According to the latest figures from NetApplications, Windows XP has an almost 30 percent share of the desktop OS market, second only to Windows 7 which has about 47 percent. By contrast, Windows 8, which started shipping in October 2012, and its 8.1 update, released a year later, have a combined share of about 10.6 percent.

PCWorld