I would say it mostly depends on the entropy pool and how entropy is collected.
I found this:
Microsoft Windows releases newer than 95A feature the CryptoAPI (CAPI)
API that gathers entropy in a similar fashion to Linux kernel's
/dev/random. Windows's CryptoAPI uses the binary registry key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\RNG\Seed to store a
seeded value from all of its entropy sources. Because CryptoAPI is
closed-source, some free and open source software applications running
on the Windows platform use other measures to get randomness. For
example, GnuPG, as of version 1.06, uses a variety of sources such as
the number of free bytes in memory that combined with a random seed
generate the desired randomness it needs. Programmers using CAPI
can get entropy by calling CAPI's CryptGenRandom(), after properly
I hope it helps or points you in the right direction to follow.