win7: key based auth failed when when run ssh, scp, sftp in a loop

[bingbing8]

Please answer the following
"OpenSSH for Windows" version
0.0.16.0

Server OperatingSystem
Windows 7 Professional

Client OperatingSystem
Windows 7 Professional

What is failing
remote user profile crashes when run ssh, scp, sftp in a loop
as the result, key based auth failed due to the fact the authorized_key file is not found

Expected output
all the commands should work

Actual output

$a = 0
while ($a++ -lt 20) {ssh user@localhost echo %userprofile%}
C:\Users\sshtest_ssouser
C:\Users\TEMP

when profile crashes, the registry key changed from HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-37xxxx039-4189152760-3792XXXXXXX-1003 to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-37xxxx039-4189152760-3792XXXXXXX-1003.bak
.bak is added to the registry

Note:
in sshd.log, the path to authorzed_keys it looks for are:
C:\Users\TEMP/.ssh/authorized_keys
C:\WINDOWS/.ssh/authorized_keys