Expand PST size in outlook 2007 and 2010
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Modified on: Wed, 10 Jun, 2015 at 4:56 PM
Click Start, and then click Run.
In the Open box, type regedit, and then click OK.
In the left pane, expand My Computer, and then expand HKEY_CURRENT_USER.
Expand Software, and then expand Policies.
Expand Microsoft, and then expand Office.
Expand 11.0 for Outlook 2003, 12.0 for Outlook 2007, or 14.0 for Outlook 2010, or 15.0 for Outlook 2013, and then expandOutlook.
Click PST, and then right-click MaxFileSize in the right pane.
Click Modify, and then type the value in the Value data box.
Click OK.
Right-click WarnFileSize, and repeat steps 8 through 9.
Right-click MaxLargeFileSize, and repeat steps 8 through 9.
Right-click WarnLargeFileSize, and repeat steps 8 through 9.
Right click Outlook, point to New, and then click Key. (The screen shot for this step is listed below).
Type PST, and then press ENTER. (The screen shot for this step is listed below).
Right click PST, point to New, and then click DWORD value. (The screen shot for this step is listed below).
Type MaxFileSize, and then press ENTER twice. (The screen shot for this step is listed below).
In the Edit DWORD Value window, choose Decimal and type the value in the Value data box, and then click OK.
Note 1GB=1*1024*1024*1024byte; 1MB=1*1024*1024byte; 1KB=1*1024byte, the example below is for 1GB. (The screen shot for this step is listed below).
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