If installing from a disk, try ejecting it and cleaning it gently. One community tip from the Microsoft Q&A forums
Office installation failures often occur due to missing or corrupted CAB files, particularly Propsww2.cab (which contains proofing tools/resources). Currently, no built-in retry or checksum validation exists for this file during manual download.
Alternatively, use the /extract command in the Windows "Run" dialog (Win + R) to extract the .exe contents manually: C:\Path\To\OfficeSetup.exe /extract . 2. Clear Previous Office Installations
and community support, the following steps typically resolve the issue: Setup cannot find ProPlus.WW\propsww2.cab - Microsoft Q&A