1. See attached.
2. I was updating an earlier version, don't know which one (see 4). After disabling Ransomeware Protection I successfully updated to Version vuex6497 (see 3.).
3. Vuescan updates by replacing an earlier version. After downloading the new version I attempted to run vuex6497.exe. The earlier version was removed but then an error msg appeared, a screen shot of which is attached.
4. See 3. Not a portable application to my knowledge. I have had the Professional version for at least 10 years and obtained it from the company that created it, www.hamrick.com
ARW.zip