Problem with updating

I got this now:

Connected
Logged in
Checking for updates
Version 20180209 found
You are running the version 20180127
Version 20180209 found and is downloading now
4195 kbytes received

Click APPLY UPDATE button

Disconnected

Cannot move "C:\AE Trader\AETrd.EXE" to "C:\AE Trader\upd\TRD20180127\AETrd.EXE"
Cannot move "C:\AE Trader\upd\TRD20180209\AETrd.EXE" to "C:\AE Trader\AETrd.EXE"
Cannot move "C:\AE Trader\AstroCalc.dll" to "C:\AE Trader\upd\TRD20180127\AstroCalc.dll"
Cannot move "C:\AE Trader\upd\TRD20180209\AstroCalc.dll" to "C:\AE Trader\AstroCalc.dll"


The files which have to replaced are locked in your system for some reason.

Manually replace:
"C:\AE Trader\AETrd.EXE"
"C:\AE Trader\AstroCalc.dll"

with new ones:

"C:\AE Trader\upd\TRD20180209\AETrd.EXE"
"C:\AE Trader\upd\TRD20180209\AstroCalc.dll"

if you cannot do this even manually, reboot your PC.