New
#1
Sporadic short freezes accompanied by 4624 and 4672 events
Hi,
I have read the 2 other relevant threads in SevenForums (as well as many others on other sites) but I still have not found a solution to this issue.
My Lenovo T530 will randomly freeze an application for a couple of seconds at a time. The behavior is per application ie: Outlook may freeze but I can still use Chrome. Or Chrome may freeze but Acrobat still works. It can happen to pretty much any application at any unexpected time - sometimes a few times in an hour and sometimes once every few hours. The "freeze time" varies from barely noticeable to ~5 seconds.
I have definitely connected these freezes to events 4624 (An account was successfully logged on) and 4672 (Special privileges assigned to new logon) that appear in the event viewer under the Security Logs section but it is not clear to me what may cause them.
I have performed most of the tests/SFC/device driver/bios upgrade/malware scans that have been recommended (with no change). I have not completely ruled out some strange HDD issue - but I am not sure why such behavior would just start one day (when the laptop had been working perfectly for 8 months). Also there are intensive HDD tasks that produce no errors. The symptoms are not getting worse - it has been the same since it started happening.
Thanks in advance for any suggestions.
A sample Security Auditing 4624 event is pasted below:
______________________________________________
An account was successfully logged on.
Subject:
Security ID: SYSTEM
Account Name: <edited>-LT-W7$
Account Domain: <edited>
Logon ID: 0x3e7
Logon Type: 5
New Logon:
Security ID: SYSTEM
Account Name: SYSTEM
Account Domain: NT AUTHORITY
Logon ID: 0x3e7
Logon GUID: {00000000-0000-0000-0000-000000000000}
Process Information:
Process ID: 0x484
Process Name: C:\Windows\System32\services.exe
Network Information:
Workstation Name:
Source Network Address: -
Source Port: -
Detailed Authentication Information:
Logon Process: Advapi
Authentication Package: Negotiate
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
This event is generated when a logon session is created. It is generated on the computer that was accessed.
The subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The logon type field indicates the kind of logon that occurred. The most common types are 2 (interactive) and 3 (network).
The New Logon fields indicate the account for whom the new logon was created, i.e. the account that was logged on.
The network fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
- Logon GUID is a unique identifier that can be used to correlate this event with a KDC event.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Quote