udateeing to micosoft update, from windows update

Hey all;
Been awhile, guess there havn't been many problems till now. I upgraded
to microsoft update from windows uipdate. When I manually run this, it seems
to hang for an extremely long time, and even stops responding once in a
while. Have tried down gradeing back to windows update, and seems to run
normally again, but wanted to stay with microsoft update to make sure I get
everything important to my system.
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Thankx in advance...Jim