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Only if you have a previous backup. If not you cant
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Only if you have a previous backup. If not you cant

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If I understand the question correctly, you want to know how to make use of Regedit to make changes to the Registry.<br />
<br />
In that case, try this simple guide from Symantec:<br />
<br />
<a href="http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2000060422485506?Open&src=&docid=20011209211132933&nsf=SUPPORT%5CINTER%5Ckoreankb.nsf&view=kdocid&dtype=&prod=&ver=&osv=&osv_lvl=" rel="ugc nofollow">http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2000060422485506?Open&src=&docid=20011209211132933&nsf=SUPPORT%5CINTER%5Ckoreankb.nsf&view=kdocid&dtype=&prod=&ver=&osv=&osv_lvl=</a><br />
<br />
Auriclus
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If I understand the question correctly, you want to know how to make use of Regedit to make changes to the Registry.

In that case, try this simple guide from Symantec:

http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2000060422485506?Open&src=&docid=20011209211132933&nsf=SUPPORT%5CINTER%5Ckoreankb.nsf&view=kdocid&dtype=&prod=&ver=&osv=&osv_lvl= [http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2000060422485506?Open&src=&docid=20011209211132933&nsf=SUPPORT%5CINTER%5Ckoreankb.nsf&view=kdocid&dtype=&prod=&ver=&osv=&osv_lvl=]

Auriclus

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on older OS's (NT) there's also regedt32.exe as well as regedit.exe - slightly different look and feel, and only one lets you search. &nbsp;<br />
<br />
<a href="http://support.microsoft.com/default.aspx?kbid=141377" rel="ugc">http://support.microsoft.com/default.aspx?kbid=141377</a>
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on older OS's (NT) there's also regedt32.exe as well as regedit.exe - slightly different look and feel, and only one lets you search.  

http://support.microsoft.com/default.aspx?kbid=141377 [http://support.microsoft.com/default.aspx?kbid=141377]

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how can we update regedit and read it? thanks in advanced
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how can we update regedit and read it? thanks in advanced

how can we update regedit................

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