How to remove Windows 7 and install Windows 8.1

Windows 7 is reaching the end, and you'll have to switch to something newer like Windows 8.1 or 10. You can download Windows 8.1 using Windows ISO Downloader link: https://www.heidoc.net/joomla/technology-science/microsoft/67-microsoft-windows-and-office-iso-download-tool Windows 10 can be downloaded using the Media Creation Tool from the Microsoft website Keys (for Windows 8.1): XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB (key I used) 3FCND-JTWFM-24VQ8-QXTMB-TXT67 GX9N8-4H2FH-D987T-BQ9GK-XKT67 KKPMN-469HY-H6V43-T8VX2-8W8XV T3NJK-3P683-2T7BJ-2X27F-8B2KV DNJXJ-7XBW8-2378T-X22TX-BKG7J MBFBV-W3DP2-2MVKN-PJCQD-KKTF7 6RH4V-HNTWC-JQKG8-RFR3R-36498 4Y8N3-H7MMW-C76VJ-YD3XV-MBDKV 28VNV-HF42G-K2WM9-JXRJQ-2WBQW