It's default. It applies only when use use WinSCP for the first time on the respective local account.
If you are already using WinSCP, just disable them in the GUI:
https://winscp.net/eng/docs/ui_pref_updates

I want to disable statistics.
I've found so far:
https://winscp.net/forum/viewtopic.php?t=26832
and the Link
https://winscp.net/eng/docs/administration

[HKEY_LOCAL_MACHINE\SOFTWARE\Martin Prikryl\WinSCP 2]
"DisableOpenEdit"=dword:00000001
"DisablePasswordStoring"=dword:00000001
"DisableAcceptingHostKeys"=dword:00000001
"ForceBanners"=dword:00000001
"DefaultUpdatesPeriod"=dword:00000000
"DefaultCollectUsage"=dword:00000001

On 64-bit systems, a physical location of the key is HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Martin Prikryl\WinSCP 2 (as WinSCP is 32-bit application).

But it doesn't work. Both in
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Martin Prikryl\WinSCP 2
and
HKEY_LOCAL_MACHINE\SOFTWARE\Martin Prikryl\WinSCP 2
there is no influence on the property dialogue.
What is the right combination of DefaultUpdatesPeriod and DefaultCollectUsage?
regards
Steffen