An unhandled exception ('System.Security.Cryptography.CryptographicException') occurred in OWSTIMER.EXE

OwsTimer 서비스를 재시작하면 다음과 같은 오류 메시지 창이 뜨거나,

An unhandled exception ('System.Security.Cryptography.CryptographicException') occurred in OWSTIMER.EXE [...].

The Just-In-Time debugger was launched without necessary security permissions. To debug this process, the Just-In-Time debugger must be run as an Administrator. Would you like to debug this process?

Log Name:      Application
Source:        Windows Error Reporting
Date:          2014-01-10 오후 9:34:53
Event ID:      1001
Task Category: None
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      testpc.testad.com
Description:
Fault bucket , type 0
Event Name: CLR20r3
Response: Not available
Cab Id: 0

Problem signature:
P1: owstimer.exe
P2: 14.0.6028.1000
P3: 4daff496
P4: mscorlib
P5: 2.0.0.0
P6: 520b0e49
P7: 4e3b
P8: 6
P9: UDTA330IDOBH2ROZ2AYVLCELAG5AGTLS
P10: 

Attached files:

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_owstimer.exe_cb6ad4b3edfa8ab48cda343a923778a381aca_00000000_0e47803b

Analysis symbol: 
Rechecking for solution: 0
Report Id: 8c3c905b-79b0-11e3-9425-00155d805a06
Report Status: 4100
Hashed bucket: 

Log Name:      System
Source:        Application Popup
Date:          2014-01-10 오후 9:34:55
Event ID:      26
Task Category: None
Level:         Information
Keywords:      
User:          SYSTEM
Computer:      testpc.testad.com
Description:
Application popup: Visual Studio Just-In-Time Debugger : An unhandled exception ('System.Security.Cryptography.CryptographicException') occurred in OWSTIMER.EXE [6936]. Just-In-Time debugging this exception failed with the following error: The process ID is invalid.

Check the documentation index for 'Just-in-time debugging, errors' for more information.

Common problem with SharePoint 2010: System.Security.Cryptography.CryptographicException - Keyset does not exist
; http://blogs.technet.com/b/stefan_gossner/archive/2010/05/10/common-problem-with-sharepoint-2010-system-security-cryptography-cryptographicexception-keyset-does-not-exist.aspx

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug
(64비트인 경우: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\AeDebug)