First Failure in 2 years: Sleep/Wakeup Failures. Why?

Win7 Ultimate x64 on a HP DC7600 w/4GB and a big drive.
This system has been rock-stable for nearly 2 years now and is my one point of stability in an otherwise lab-ish environment where I work on other people's issues...

Recently, like one week ago, I come in to the office early per normal, and hit the keyboard to wakeup my trusty system and nothing happened except the disk activity LED lit up as the system attempted to wake [I assume], but the screen remained sound asleep and nothing I could do would get access to the system. I finally had to resort to a forced power off [hold the p/s button]. When the system rebooted, it went into "Resuming Windows" mode, which quite surprised me. it tried to reboot and failed. Shut down again, and the next time it went to debug mode, ran chkdsk, came up clean, and started Win7 normally. I checked the error log and there was nothing there except the obvious, that I had triggered abrupt shutdown of a number of processes. In the time prior to me messing with it, there were no remarkable events in the log.

Subsequent to that event, a similar issue is now persistent: the system will no longer awaken from sleep by simply touching keys or touchpad or any of that. It will come back if I give a one-push power button, which is different behaviour than the system previously showed. WHAT HAPPENED? Why the change?

To answer the obvious questions, yes there were some changes recently that may have contributed-to or caused this issue, but how? :

1. I do not auto-update this system from Microsoft, having it set to "notify but do not d/l or install". I went through the accumulated list of updates, picked out the ones that seemed to only be 'good' Win7 updates, and installed them all about four days or so, if I recall right, prior to the problem.

2. I also created a second user account on the system. Normal full-access account, but had almost no activity in that account. This was the first time on this particular rig that I had a second account [not including the builtin Administrator]

How do I go about root-causing this issue?

I also note this: I use Glary registry utility. Typically on this X64 Win7 rig I see very few registry errors. But after seeing this problem, I checked twice and the utility is reflecting 200+ registry errors whereas usually I would see 10 or less [not bad for a 'windows'.....].

If anyone can please give me some pointers I will be so grateful.

Glary's package is good stuff. you should give it a look on a non-production machine.
i use ccleaner for some things.
and I didn't say I made changes - I said the count of errors was 10x what i've typically seen.

but back to the topic, what would CAUSE a change in the sleep settings?

Lunarpancake said:

Registry scanners can be troublesome. The ONLY one I trust with my registry is CCleaner. It has never once caused problems on any pc ive ran it on. I have run it on hundreds of pc's for customers and users.


Also, check your sleep/wake and Hibernation settings.

BUMP~!

Interesting anecdote: I built up a config for a dear friend, x64 Ultimate also, on a Dell GX620. I mentioned my issues [which are still unresolved, I finally had to just terminate Sleep mode altogether, which somehow has now broken my other power-saving options... the system won't "lock" when unattended]. When we compared notes, his system had started doing the same 'trick' in the last couple of weeks, but when I asked him to check his update history, he has done no updates whatsoever in many many months. We have nothing else in common... don't share any applications etc..... very very strange coincidence.

Any resultat?
I have tryed bios and windows changes without any luck.

Nope, its permanently broken, apparently.
I believe there is a bug that has something to do with multiple User profiles. I know of one other system that has the exact same issue, same OS [x64 ultimate] and the problem with sleep/recover began shortly after that one setup a second user account with admin privileges, just as my system had. Other than that I have nothing to go on since neither system records anything in the error log about the failed wakeups.
I have removed the second account the proper textbook way [which leaves debris btw] but the sleep/wake function did not regain coherence.

My assumption is that a default power plan is assigned to the new account and registry entries are made accordingly, and those entries conflict with the power plan of the prior User account, but I can't prove any of that since I am ignorant of the registry entries pertinent to Power Plan settings. I wager that despite "removing" or "deleting" a User Account, entries yet exist in the R.
I have resorted to no sleep or hibernate on my sys.
AlGore is not pleased.

z

Tall said:

Any resultat?
I have tryed bios and windows changes without any luck.