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Windows 7: MSE, restarts before login, missing event log entries

04 Dec 2009   #1

Windows 7
MSE, restarts before login, missing event log entries


I'm quite consternated and I'd love to hear your opinions on this. The story:

I'm experiencing strange restarts but not random, I can routinely replicate it. After a boot IF I leave the logon screen alone (i.e. without logging in), the system restarts itself almost like automatically after about 10 seconds. If I do log in within the 10 seconds interval, the login is successful and the restart won't occur. So no restarts while working.

Logically, I started searching the Event log; that's where I discovered the scary part (after some tests and trials):

The entire "restarted" session is missing!


20:00 I shutdown the computer (from Windows start menu).

20:10 I start the computer. The log on screen appears. 10 seconds pass and said automatic restart occurs.

20:20 I start the computer, log in within 10 seconds interval and start working (and searching the Event log).

In the Event log around 20:00 there are usual shutdown routine entries.
Around 20:20 there are usual boot up routine entries.
There are absolutely NO log entries indicating the system was run at 20:10 at all!!!
(Only exception is rather cheeky:
"The previous system shutdown at 20:11:03 on ‎3.‎12.‎2009 was unexpected.")
There are NO log entries (Application/Security/System) with any such time.

I find this extremely confusing.

I suspected Microsoft Security Essentials because there was one time that the restart occurred shortly AFTER I logged in, with MSE error - that one was recorded in the event log but unfortunately I cleared it some time ago.

After I uninstalled MSE (Defender automatically kicked in), things got worse. The restart followed shortly even after login no matter what. System was unusable so I restored previous bit copy.

Simply disabling the Microsoft Anti-Malware service does nothing.

I'm running W7 Enterprises (official trial image). Quite new installation without any special settings (I believe).

I certainly appreciate any help or advice...

My System SpecsSystem Spec
04 Dec 2009   #2
Microsoft MVP


Try another free antivirus - and scan the system to rule out malware.
My System SpecsSystem Spec

 MSE, restarts before login, missing event log entries

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