I have a pc running windows 8.1 pro and I want to upgrade to windows 10, but when I use "Windows 10 Upgrade Assistant" it says that my PC will not run windows 10. My CPU is OK, my Memory is OK, my Disk Space is OK, but the Operating System is not OK. It says "Contact your system administrator to upgrade Windows Server or Enterprise editions".
Like the message said, upgrade wont install on enterprise or server editions of Windows. Most likely you have enterprise (academic) version of Windows. You can get Windows 10 version from your company or university and do manual upgrade.
Edit: if you're not sure about your version, run Settings / system and click about (similar in Windows 8.1):
Computer Type PC/Desktop OS Windows X (various flavours) CPU Core2Duo E7200 Motherboard Gigabyte (EP35) Memory 4 GB Graphics Card Radeon HD6450 Sound Card Realtek Monitor(s) Displays Dual LG + NEC Screen Resolution 1680 x 1050 +
Keyboard Cherry, same for the last 20 years Mouse Logitech wireless PSU Generic 400 and some Cooling Silent Hard Drives SSD boot, Seagate spinner data Internet Speed 25/5 Browser FF, Edge Antivirus WD + Winpatrol + MBAE+Cryptoprevent Other Info HP Probook 450 with Win 10 latest, Intel Skylake, SSD Crucial MX200, 8 GB DDR3, FHD
Windows 10 Forums is an independent web site and has not been authorized,
sponsored, or otherwise approved by Microsoft Corporation.
"Windows 10" and related materials are trademarks of Microsoft Corp.