Problem KB2550581 FCB might also other types of non-response (including a few "calculation... ("freezes). Check and ideas to fix?

I was debugging delays depot system move/delete/rename on my PC and LAN and came across some curious info, I saw not elsewhere reported anywhere that suggests

  1. the hotfix in KB2550581 is not his comprehensive work;  and
  2. at least some aspects of the question of 'Calculation' notorious and other excessive production of Win7 system breaks that have not been resolved so far, perhaps because of problems of KB2550581

I get exactly the same on multiple computers, Sony laptop to a visitor, a file of Intel Server, Asus desktop computer and a few others, with a different hardware, drivers, network and config PC, Windows installers, history, use and maintenance, and even when non-essential services etc were disabled and without worrying about any registry tweaks history , the results below are 100% compatible between any of them.

Reproduction ('works for me')

  1. Pure install Win7 both x 64 SP1 up to date PCs on a modern good quality material.
  2. Run any basic settings that you would usually use to prevent the normal question "calculating...". ».  There are many pages on this, they cover LargeCache, LANMan settings, icon of the caches, thumbnails... a range of possible corrections suggested in these forums.  Use everything that seems sane to eliminate the causes of 'normal '.
  3. Use msconfig and ShellExView to disable all the but the most critical services, shell and startups to run extensions. In testing, I have disabled about 60% of the entries not only 3rd party Microsoft.
  4. Link them via a 'transparent' good connection which does not add unnecessary complications (simple Gb Lan/Cat6 used here).
  5. Create a file share to R/W on a single machine ("B") by "sharing advances" ("simple networking" and "homegroups" disabled). I shared the root of a partition of test data. Use a different machine ("A") to perform actions of system files on this share.
  6. On computer A, in Windows Explorer, by using the context menu "New->" in Windows Explorer, verify that creating files and text files etc. on the machine B file sharing are almost instant, as is the removal.
  7. Now repeat, but instead of New-> folder or New-> text file, click New-> shortcut. For me it was unlike any other New-> action, there was a blockage or a gel to explore for 35 seconds, and then the action began as normal ("place of the entry shortcut') as if nothing unusual had happened.
  8. Repeat this process as much as you want, time delay in the second.  For me the timing was precise, reproducible and this telling, was the same every time and between any pair, A-> B, B-> C, A-> C and same D-> E, all different hw, installers, drivers, config and use, suggesting it is coherent and not down to the a machine problems. This exactly matches the description in KB2550581: -.
    (a) network shares on Win7 SP1 (title says Win7 but text says "or SP1")
    b mapped drive
    c activity of the file LAN via Windows Explorer which includes the files of navigation and querying "extended attributes" - I don't know what is an 'expanded' attribute, but I'm sure a shortcut may be what it takes as a text file or folder may not for this purpose, so it would fit the description and comments

(d) a precise and accurate 35 freeze second where "explore unresponsive" exactly like the KB said.
  • Check - anyone can reproduce what I found, that this second 35 late is considered, but it does not resolve the hotfix in KB2550581?  To me this suggests that the fix is on the right track, but something is missing.
  • During this time, Windows Explorer running on the remote computer displays the contents of the folder shared Exchange in this way: originally an item of "New shortcut" is created.  In the second 35 gel, a temporary file with the name of the form "new Shortcut.lnk ~ RFxxxxx.TMP" can be seen and disappears (deleted) at the same time, the second 35 freeze finishes.  Without doubt, in normal cases without freezing, he created and deleted too fast to be seen.
  • Wait that it is sensitive to explore again the shortcut can be seen to be present on file sharing. The shortcut created highlighted once again the machine through the local network, then press the button 'delete '. Time how long it takes leave 'Clear' button until the prompt 'do you want to really delete"dialog appears. Again, it was reliable and precisely 35 seconds for me on all platforms. I also have the infamous "calculating...". "dialog box displayed while it is happening. The remote system Explorer has been frozen or unresponsive as well. After 35 seconds exactly him freezes both end and progresses it from delete action showing used delete calls and resumes normal behavior.  Unlike shortcuts, a file or a text file created in the same way is deleted (and created) almost immediately with no delay second 35.
  • Check - c a person to reproduce the last part, namely gel 35 second on any deletion attempt, during which the 'Calculate' dialog shows? For me the 35 seconds was to delete pressing to dialog box that appears. Is a visible temporary file on the server during either the freezing of 'create a shortcut' or 'remove the shortcut' freeze? Explorer also freezes on the remote system too?


    • Interim thoughts

    1. Probably, KB2550581 is not completely resolved the problem it addresses.  Creating shortcuts is always subject to a delay of 35 seconds in what appears to be almost identical circumstances than described KB, which is likely to be the same cause that the fix is trying to fix.  Deletion of the shortcut has also the second 35 exact same freeze exactly as described in the KB, too. If the fix is not completely fixing the issues of the KB.
    2. The notorious explorer.exe "Calculation."... "question where actions such as the file rename/move/delete seem to lock up or freeze for a long time, then suddenly run or prompt"as planned"can have several causes, but KB2550581 is likely to be one of them and
    3. I didn't know the question KB2550581 or behaviour directly related to the issue of "Computing"... "on these pages so maybe it's known or perhaps new knowledge.  That's why issues KB2550581 could therefore be a less well known cause of some reports by users who have tried everything and still no irreparable problems with the behaviour of 'calculation. "... "unresponsive Windows Explorer in some situations.  A fix improvement could help here too.

    It again for someone else, or affect other types of activity files and suggestions for plausible workaround solutions?

    Hello

    The question you posted would be better suited to the TechNet community. Please visit the link below to find a community that will provide the support you want.

    http://social.technet.Microsoft.com/forums/en/w7itprogeneral/threads

    Hope this information is useful.

    Tags: Windows

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