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Step 1
Double-click "My Computer," then double-click the "C:\" drive.
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Step 2
Double-click the "Windows" directory. In this folder there is a file named $NTServicePackUninstall. This file is a backup of old service pack files and can be deleted.
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Step 3
Now delete the files from your hard drive. Double-click the "SoftwareDistribution" folder.
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Step 4
Double-click the "Download" directory. Within this folder is a long list of old service packs downloaded during installation. Delete these files.











