CamStudio 2.0 remains a gold standard for legacy screen recording. Download it from OldVersion.com, verify the hash if possible (MD5: often listed on archive pages), and test it first on a virtual machine or spare PC. For modern systems, use the official CamStudio 2.7 release – but for that classic, lean experience, version 2.0 is your best bet.
After downloading a legacy version (e.g., 2.0), right-click the installer → → Compatibility → check Run this program in compatibility mode for → select Windows 7 or Windows XP (Service Pack 3) . Then run as administrator. download camstudio old version