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PC Systems of Missouri
We’re proud to have been serving you for over 36 years!


Contact Us for More information!
Phone: (314) 336-0575
Fax (636) 861-3869
info@pcsmo.com

Referrals are the highest form of compliment. If you know anyone, who could benefit from our services, please feel free to share our contact information or click on this link and fill out the form.

Still running Windows 8.1 or 7?  It’s time to upgrade to 10 or 11!

While you could continue to use your PC running an older version of Windows
Without continued software and security updates, it will be at greater risk for viruses and malware. Going forward, the best way for you to stay secure is on Windows 10 or 11. And the best way to experience Windows 10 or 11 is on a new PC. While it is possible to install Windows 10 on your older device, it is not recommended.

 Windows 2012R2 Server OS also expired, contact us to discuss upgrading your servers

MS Office 2013 support ended April 11, 2023 – Plan an upgrade from Older versions of Office to MS 365.
we can assist with other application software too!


Life cycle of Microsoft Operating Systems

Custom PCs, Laptops, Networking, Service, Support, Off-site Backup, Phone Systems, Camera Security Systems, Web design, Hosting, Forensics, Domain Registration and Credit Card Processing!

We have an inventory of pre-owned PCs, laptops, printers, etc.  Click here for listing.

Looking to upgrade your phone system give us a call.
Novapdf by softland

We can also help with Data Recovery:

We are proud to be a Gillware Data Recovery Affiliate Partner

Latest News:   

Happy Birthday to funnyman John Cleese! Happy Halloween! Why am I seeing Christmas sales already?