Select Start > Settings > Update & Security > Activation , and then select Troubleshoot to run the Activation troubleshooter. Microsoft Support

Many sites offering activation tools may bundle them with malware or trojans. Always ensure you are downloading from a trusted source to protect your PC.

A multipurpose tool that can activate various versions of Windows (including Vista, 7, 8, and 10) and Microsoft Office.

"Cw.exe" seems to be related to one such activation tool. However, using activators can pose risks, including: