Похоже на 7-ке 64 не работает, печально.

Точно такая же проблема,
Mon Oct 12 14:12:27 2020 DEPRECATED OPTION: --max-routes option ignored.The number of routes is unlimited as of OpenVPN 2.4. This option will be removed in a future version, please remove it from your configuration.
Mon Oct 12 14:12:27 2020 OpenVPN 2.4.9 x86_64-w64-mingw32 [SSL (OpenSSL)] [LZO] [LZ4] [PKCS11] [AEAD] built on Apr 16 2020
Mon Oct 12 14:12:27 2020 Windows version 6.1 (Windows 7) 64bit
Mon Oct 12 14:12:27 2020 library versions: OpenSSL 1.1.1f  31 Mar 2020, LZO 2.10
Enter Management Password:
Mon Oct 12 14:12:30 2020 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Mon Oct 12 14:12:30 2020 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Mon Oct 12 14:12:30 2020 TCP/UDP: Preserving recently used remote address: [AF_INET]109.248.11.129:443
Mon Oct 12 14:12:30 2020 Attempting to establish TCP connection with [AF_INET]109.248.11.129:443 [nonblock]
Mon Oct 12 14:12:31 2020 TCP connection established with [AF_INET]109.248.11.129:443
Mon Oct 12 14:12:31 2020 TCP_CLIENT link local: (not bound)
Mon Oct 12 14:12:31 2020 TCP_CLIENT link remote: [AF_INET]109.248.11.129:443
Mon Oct 12 14:12:31 2020 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Mon Oct 12 14:12:31 2020 VERIFY OK: depth=1, O=5e5d1994410d374066441768, CN=5e5d1994410d374066441774
Mon Oct 12 14:12:31 2020 VERIFY KU OK
Mon Oct 12 14:12:31 2020 Validating certificate extended key usage
Mon Oct 12 14:12:31 2020 NOTE: --mute triggered...
Mon Oct 12 14:12:32 2020 4 variation(s) on previous 3 message(s) suppressed by --mute
Mon Oct 12 14:12:32 2020 [5e5d1998410d37406644177b] Peer Connection Initiated with [AF_INET]109.248.11.129:443
Mon Oct 12 14:12:33 2020 Outgoing Data Channel: Cipher 'AES-128-CBC' initialized with 128 bit key
Mon Oct 12 14:12:33 2020 Outgoing Data Channel: Using 160 bit message hash 'SHA1' for HMAC authentication
Mon Oct 12 14:12:33 2020 Incoming Data Channel: Cipher 'AES-128-CBC' initialized with 128 bit key
Mon Oct 12 14:12:33 2020 NOTE: --mute triggered...
Mon Oct 12 14:12:33 2020 1 variation(s) on previous 3 message(s) suppressed by --mute
Mon Oct 12 14:12:33 2020 open_tun
Mon Oct 12 14:12:33 2020 All TAP-Windows adapters on this system are currently in use.
Mon Oct 12 14:12:33 2020 Exiting due to fatal error

Не знаю как выйти из положения, пять раз пытался переустановить. Не помогает.