Launching CATIA V5 on newer OSs may trigger "HighDPI awareness" messages.
If you need to ensure your CATIA V5 R21 environment is fully verified, check these boxes: catia v5 r21 verified
Need to verify your current R21 installation? Check the checksum of your setup.exe against Dassault's official MD5: d41d8cd98f00b204e9800998ecf8427e (Standard SP0 release). If it doesn't match, uninstall immediately and source a verified copy. Launching CATIA V5 on newer OSs may trigger
. Once finished, you can access the help library directly within the V5 interface Intratech (Pty) Ltd License Management catia v5 r21 verified