Dwm.exe starts consuming lots of CPU when machine is idle

Since doing a fresh install of Windows 8 Pro RTM x64 English on my Sony Vaio Z21 laptop, I've been bothered by a sudden increase in fan noise whenever I leave the machine idle for a while and the displays are turned off. Finally decided to try and get to
the bottom of it today, so I ran the Performance Recorder with the CPU usage profile enabled and brought up the relevant graphs in Performance Analyzer. See the below screen shot for the results.
I started the trace and then left the machine alone for a while to trigger the idle behavior. It's pretty clear that Dwm.exe is the main culprit. As to why this process would find anything useful to do when all the displays are turned off is beyond me. Also
Outlook.exe sees a significant increase of CPU usage during the same time period. Whether these two are somehow related, I have no clue. Please note that I've disabled all other processes in the graph for clarity; no other processes showed any visible increase
during the trace.
Any advice would be greatly appreciated!
Daniel Stolt, Perceptible, http://www.perceptible.net

I'm seeing similar characteristics as some others in this thread:
- The issue occurs when the system is idle AND the power management puts my displays on standby.
- Modifying my power management settings so that the display is NEVER put on standby causes the issue to go away. (The system will not show unusual CPU activity even after sitting idle for some time.)
- When the issue occurs, dwm.exe shows some CPU activity. dwm.exe's activity averages around 25%. Several other applications show CPU activity as well. Each individual application's activity averages less than 25% (so dwm.exe's activity
is the most visible during this issue), but the total CPU activity adds up to around 60-75%. The unusual CPU activity ceases when the monitor wakes up from standby.
Do others participating in this thread observe that the issue goes away if they modify their power management settings so that their monitor is never allowed to go to standby? I understand that this isn't a viable "solution" for most people,
but I'd like to know if everyone else shares that same observation.
I have a question (and appreciation!) for the persons genuinely contributing to this thread: Do you see any unusual CPU activity occur in any other applications when this issue occurs? For example, do you see a small amount of activity in explorer.exe?
I ask this because I've watched the CPU graphs for several individual processes which happen to be running on my system. (I've been leaving several process property windows open in Process Explorer to monitor individual process performance. It's
a kludgy method but it works.) Processes such as skype.exe, steam.exe, procmon.exe (Process Monitor), and taskmgr.exe each nibble at the CPU when the problem occurs. The effect is subtle but noticeable. The CPU nibbling for these applications
disappears when the monitor wakes-up from standby.
I've also noticed that there is slightly less overall CPU consumption if all application windows are minimized when the issue occurs. In the case of steam.exe, the unusual CPU consumption all but disappears when it is minimized.
I believe Harri Kaimio's post has been the closest thing I've seen posted to a technical explanation for the issue. It seems (?) that certain applications are attempting to draw something, but they are somehow blocked or otherwise unable to do so when
the monitor is on standby. dwm.exe plays a part in drawing, so it shows activity when this occurs. However, instead of giving up, the applications seem to go nuts and attempt the (same?) thing frequently, thereby generating CPU activity.*
*Please understand that these are guesses -- if someone can correct me with more technical details or procedures which would help disprove my guesses, please do show me where these guesses are wrong! I'd love to work towards a solid explanation.
A few more tidbits:
- I do not run Logitech's SetPoint.exe.
- I'm experiencing this on a desktop system. My display adapters are: AMD/Radeon HD 7800 series, and the integrated Intel HD Graphics 4000.
- Running Windows 7.
- I am incredibly pleased that not a single person has suggested "defragmenting" in this entire thread. :)

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I looked in the following wiki pages, but couldn't find anything about this issue:
https://wiki.archlinux.org/index.php/Br … leshooting
https://wiki.archlinux.org/index.php/Dhcpcd
https://wiki.archlinux.org/index.php/Ne … figuration
https://wiki.archlinux.org/index.php/Netctl
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Last edited by mgmillani (2014-05-28 11:07:02)

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[ in case you have done this already please include it in your first post, otherwise we must assume you didn't. ]
Included in the first post now.
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Fri Aug 10 02:10:57 2007
panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 27=Unknown), registers:
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CR2: 0x3e7e3000, EBP: 0x2520bb18, ESI: 0x6d616769, EDI: 0x63216e75
EFL: 0x00000246, EIP: 0x3d69f8f1, CS: 0x00000008, DS: 0x3e7e0010
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2520b908 : 0x128d08 (0x3cc0a4 0x2520b92c 0x131de5 0x0)
0x2520b948 : 0x1a4a55 (0x3d24b8 0x1 0x1b 0x3cb56c)
0x2520ba58 : 0x19aeb4 (0x2520ba70 0x25200048 0x25200010 0x190010)
0x2520bb18 : 0x3cbbab86 (0x472dd18 0x0 0x472dd04 0x16d)
0x2520bbd8 : 0x3cbbb2de (0x472dd04 0x2520beb8 0x18 0x0)
0x2520bd38 : 0x3cbb7959 (0x472dd04 0xc0185401 0x2520beb8 0x6)
0x2520bd68 : 0x1f1668 (0xd000000 0xc0185401 0x2520beb8 0x81)
0x2520bda8 : 0x1e84a2 (0x2520bdd0 0x297 0x2520be08 0x4294bb8)
0x2520be08 : 0x1e02a3 (0x46e2210 0xc0185401 0x2520beb8 0x81)
0x2520be58 : 0x332ac8 (0x4277700 0xc0185401 0x2520beb8 0x4294bb8)
0x2520be88 : 0x350e24 (0x4277700 0xc0185401 0x2520beb8 0x4294bb8)
0x2520bf58 : 0x37ad83 (0x4294bb8 0x4244000 0x4244044 0x0)
0x2520bfc8 : 0x19b28e (0x4003120 0x0 0x10 0x0) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xbfffdf78
Kernel loadable modules in backtrace (with dependencies):
com.parallels.kext.vmmain(2.2)@0x3cbb6000
Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386
Wed Aug 15 23:20:02 2007
panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x8001003b, CR2: 0x0000002b, CR3: 0x01344000, CR4: 0x000006e0
EAX: 0x03f3ef80, EBX: 0x00000018, ECX: 0x004b0958, EDX: 0xffffffff
CR2: 0x0000002b, EBP: 0x25873c48, ESI: 0x00000003, EDI: 0x04ea0f40
EFL: 0x00010202, EIP: 0x003c1ca8, CS: 0x00000008, DS: 0x01d30010
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x25873a28 : 0x128d08 (0x3cc0a4 0x25873a4c 0x131de5 0x0)
0x25873a68 : 0x1a4a55 (0x3d24b8 0x1 0xe 0x3d1cdc)
0x25873b78 : 0x19aeb4 (0x25873b90 0x1 0x25873b98 0x38)
0x25873c48 : 0x3c1e04 (0x4ea0f40 0x410d800 0x0 0x3c205f)
0x25873c68 : 0x3c27fa (0x410d800 0x0 0x0 0x0)
0x25873ca8 : 0x3c2867 (0x410d800 0x4e96900 0x4e56140 0x197fa7)
0x25873ce8 : 0x38759c (0x40f6a40 0x0 0x25873d28 0x3c1f72)
0x25873d08 : 0x38adbb (0x3f90000 0x4e96a00 0x0 0x3f90000)
0x25873d28 : 0x3b23a8 (0x3f90000 0x4e96a00 0x25873d58 0x3bef49)
0x25873d78 : 0x188511 (0x3f90000 0x4eb44b4 0x4eb44c8 0x11cc32)
0x25873db8 : 0x12b4c3 (0x4eb76b4 0x4eb4498 0x0 0x0)
0x25873df8 : 0x124b17 (0x4eb7600 0x0 0x18 0x25873edc)
0x25873f08 : 0x195a42 (0x25873f44 0x0 0x0 0x0)
0x25873fc8 : 0x19b32e (0x4056f20 0x0 0x19e0b5 0x4056ba0) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb011e448
Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386
Thu Aug 16 18:53:07 2007
panic(cpu 1 caller 0x003BEE20): OSObject::refcount: Attempting to retain a freed object
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x2591bbb8 : 0x128d08 (0x3cc0a4 0x2591bbdc 0x131de5 0x0)
0x2591bbf8 : 0x3bee20 (0x3f262c 0x3f2608 0x411cf64 0x4124200)
0x2591bc18 : 0x3c1cab (0x4327720 0x4b0958 0x38 0x3c1934)
0x2591bc48 : 0x3c1e04 (0x4416500 0x4124200 0x0 0x3c205f)
0x2591bc68 : 0x3c27fa (0x4124200 0x0 0x0 0x0)
0x2591bca8 : 0x3c2867 (0x4124200 0x5f13680 0x5f7b6c0 0x1628d8)
0x2591bce8 : 0x38759c (0x411dd80 0x0 0x2591bd28 0x3c1f72)
0x2591bd08 : 0x38adbb (0x410f480 0x428fa00 0x0 0x410f480)
0x2591bd28 : 0x3b23a8 (0x410f480 0x428fa00 0x2591bd58 0x3bef49)
0x2591bd78 : 0x188511 (0x410f480 0x8684eb4 0x8684ec8 0x11cc32)
0x2591bdb8 : 0x12b4c3 (0x867c7b4 0x8684e98 0x0 0x0)
0x2591bdf8 : 0x124b17 (0x867c700 0x0 0x18 0x2591bedc)
0x2591bf08 : 0x195a42 (0x2591bf44 0x0 0x0 0x0)
0x2591bfc8 : 0x19b32e (0x403be40 0x0 0x19e0b5 0x403be40) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb011e428
Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386
Thu Aug 16 20:37:58 2007
panic(cpu 0 caller 0x001A4A55): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
CR0: 0x80010033, CR2: 0x07ea2dc0, CR3: 0x01344000, CR4: 0x000006e0
EAX: 0x07ea2dc0, EBX: 0x00000028, ECX: 0x004b0958, EDX: 0x03f590a0
CR2: 0x07ea2dc0, EBP: 0x258f3c48, ESI: 0x00000005, EDI: 0x043539c0
EFL: 0x00010206, EIP: 0x04b6854a, CS: 0x00000008, DS: 0x00000010
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x258f3a18 : 0x128d08 (0x3cc0a4 0x258f3a3c 0x131de5 0x0)
0x258f3a58 : 0x1a4a55 (0x3d24b8 0x0 0xe 0x3d1cdc)
0x258f3b68 : 0x19aeb4 (0x258f3b80 0x206 0x258f3bd8 0x1416ad)
0x258f3c48 : 0x3c1e04 (0x43539c0 0x4152ec0 0x0 0x3c205f)
0x258f3c68 : 0x3c27fa (0x4152ec0 0x0 0x0 0x0)
0x258f3ca8 : 0x3c2867 (0x4152ec0 0x4355b00 0x3ed7d00 0x1628d8)
0x258f3ce8 : 0x38759c (0x4147280 0x0 0x258f3d28 0x3c1f72)
0x258f3d08 : 0x38adbb (0x412d500 0x3efbd80 0x0 0x412d500)
0x258f3d28 : 0x3b23a8 (0x412d500 0x3efbd80 0x258f3d58 0x3bef49)
0x258f3d78 : 0x188511 (0x412d500 0x4b78eb4 0x4b78ec8 0x11cc32)
0x258f3db8 : 0x12b4c3 (0x4b78db4 0x4b78e98 0x0 0x0)
0x258f3df8 : 0x124b17 (0x4b78d00 0x0 0x18 0x258f3edc)
0x258f3f08 : 0x195a42 (0x258f3f44 0x0 0x0 0x0)
0x258f3fc8 : 0x19b32e (0x403f000 0x0 0x19e0b5 0x3eae6c8) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb011e538
Kernel version:
Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386

I unchecked the "put hard disk(s) to sleep when possible" option in the Energy Saver configuration under System Preferences and this seems to have solved the problem. I left it idle last night for hours and not problem. I will keep monitoring it.
In the mean time, if anyone knows how to read the panic log (or can suggest a tool to do so), please post a reply.
Kevin

Jlaunch consumes lot of resources after upgrade

hi,
After upgrading our XI system from NW700 SP15 to EHP1 701 SP5 we find that the Jlauch is constantly using around 60% of the CPU and degrades the system performance. Has anyone experience this before?
This is print from the Thread Dump Taken.
"JCO.ServerThread-71" prio=5 tid=0x000000010282e750 nid=0x120 in Object.wait() [0xfffffffe11bff000..0xfffffffe11bff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-73" prio=5 tid=0x00000001039e1420 nid=0x11f in Object.wait() [0xfffffffe123ff000..0xfffffffe123ff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-72" prio=5 tid=0x0000000103b2d540 nid=0x11e in Object.wait() [0xfffffffe12bff000..0xfffffffe12bff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-70" prio=5 tid=0x0000000103b74220 nid=0x11d in Object.wait() [0xfffffffe133ff000..0xfffffffe133ff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-69" prio=5 tid=0x0000000102e28c60 nid=0x11c in Object.wait() [0xfffffffe13bff000..0xfffffffe13bff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-65" prio=5 tid=0x0000000102daed70 nid=0x11b in Object.wait() [0xfffffffe143ff000..0xfffffffe143ff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea652ee18> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-68" prio=5 tid=0x0000000102d00ae0 nid=0x11a in Object.wait() [0xfffffffe14bff000..0xfffffffe14bff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-67" prio=5 tid=0x0000000104469de0 nid=0x119 in Object.wait() [0xfffffffe153ff000..0xfffffffe153ff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea7408da0> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea7408da0> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea7408da0> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-66" prio=5 tid=0x00000001027ff050 nid=0x118 in Object.wait() [0xfffffffe15bff000..0xfffffffe15bff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea741ec40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
"JCO.ServerThread-64" prio=5 tid=0x0000000102954570 nid=0x117 in Object.wait() [0xfffffffe163ff000..0xfffffffe163ff8b0]
        at java.lang.Object.wait(Native Method)
        - waiting on <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at java.lang.Object.wait(Object.java:429)
        at com.sap.mw.jco.RequestListenerGroup$RequestQueue.getRequest(RequestListenerGroup.java:719)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.loop(JCO.java:8240)
        - locked <0xfffffffea7404a40> (a com.sap.mw.jco.RequestListenerGroup$RequestQueue)
        at com.sap.mw.jco.JCO$Server.run(JCO.java:8166)
        at java.lang.Thread.run(Thread.java:534)
Thank you
Jonu Joy

I have seen cases where JSPM consumes lot of CPU resource . Do you have any JSPM session open . IF yes try closing it.
Thanks,
Gerard

Firefox does not open when clicking on the icon, the firefox.exe process consumes 99 % of the CPU and my computer runs slowly.

I have been a happy user of Firefox for many years. Around last April first I opened Firefox and was offered an update to v 4.42.0.0 which I accepted. Installation seemingly went well. I forget now exactly what happened but the result has been that ever since April 1 I haven’t been able to open the Firefox browser when clicking on the Firefox icon. My computer now was running very slowly. I tried to uninstall Firefox, but a popup told me I couldn’t because Firefox was in use. This confused me because I couldn’t see it being used. Only now I have found that on Task Manager processes that “firefox.exe” was consuming 99 % of the CPU. After removing firefox.exe by clicking End Process my computer ran better. I uninstalled Firefox I had on my computer and installed Firefox 5.0. Unfortunately I have the same problems: Firefox does not open when clicking on the icon, the firefox.exe process consumes 99 % of the CPU and my computer runs slowly.

Born2die! Brilliant. I am a desktop clicker and never knew Firefox had a safe mode.
Thank You!
I was unable to start in safe mode initially. The second time I disabled all of the Add-Ons and she started up just fine. I enabled them one by one hoping to track down the culprit but the problem seems to have gone away.
BTW I am running ver. 3.6.8 (in response to cor-el's earlier post) and
Firefox is in the process of downloading 3.6.10 (which I am starting to think may have been what caused this whole problem to begin with)
Incidentally, whats up with all of the Java Console Add Ons?
I have:
Java Console 6.0.11, Java Console 6.0.13, Java Console 6.0.15
Java Console 6.0.17, Java Console 6.0.20, and Java Console 6.0.21
What are they? Do I need them? Can I uninstall them? Is this due to using Open Office?
Also, .NET Framework 0.0.0 Should I uninstall it?

Dwm.exe starts consuming lots of CPU when machine is idle

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