[Solved] osmosis not writing file for me - Windows 10

I apologise for such a silly question as I realise I must be doing something really silly. All help will be greatly appreciated.

The command

osmosis --read-xml "C:\Users\John\Desktop\Test.osm" --write-xml "C:\Users\John\Desktop\fred.osm"

does not write fred.osm. osmosis runs and I get:

C:\Users\John\Desktop>osmosis --read-xml "C:\Users\John\Desktop\Test.osm" --write-xml "C:\Users\John\Desktop\fred.osm" C:\Users\John\Desktop>"C:\Program Files (x86)\Osmosis\bin\osmosis.bat"Oct 08, 2020 4:58:36 PM > org.openstreetmap.osmosis.core.Osmosis run INFO: Osmosis Version 0.48.3 Oct 08, 2020 4:58:36 PM org.openstreetmap.osmosis.core.Osmosis run INFO: Preparing pipeline. Oct 08, 2020 4:58:36 PM org.openstreetmap.osmosis.core.Osmosis run INFO: Launching pipeline execution. Oct 08, 2020 4:58:36 PM org.openstreetmap.osmosis.core.Osmosis run INFO: Pipeline executing, waiting for completion. Oct 08, 2020 4:58:36 PM org.openstreetmap.osmosis.core.Osmosis run INFO: Pipeline complete. Oct 08, 2020 4:58:36 PM org.openstreetmap.osmosis.core.Osmosis run INFO: Total execution time: 786 milliseconds.

Setup.

1. I copied osmosis to C:\Program Files (x86)\osmosis.
2. Test.osm is on the desktop.
3. I have Java 8 Update 261 and Java Update 261 (64 bit) installed
4. I started a CMD window and entered osmosis --read-xml "C:\Users\John\Desktop\Test.osm" --write-xml "C:\Users\John\Desktop\fred.osm"
5. I tried without paths as osmosis --read-xml Test.osm --write-xml fred.osm but it did not write

6. Test.osm contains

   <?xml version="1.0" encoding="UTF-8"?> <osm version="0.6" generator="ANW"> <bounds minlat="49.7667486" minlon="-8.1628456" maxlat="60.8081270" maxlon="1.7604432"/> <node id="1152921504610000001" lat="57.1496060" lon="-2.0969160" user="nobody" uid="1" visible="true" version="1" changeset="1" timestamp="2013-01-25T01:21:31Z"> <tag k="amenity" v="postal_code"/> <tag k="name" v="AB10 1AB"/> </node> <node id="1152921504610000002" lat="57.1487070" lon="-2.0978060" user="nobody" uid="1" visible="true" version="1" changeset="1" timestamp="2013-01-25T01:21:31Z"> <tag k="amenity" v="postal_code"/> <tag k="name" v="AB10 1AF"/> </node> </osm>