A folder failed to be renamed or moved

安装Andriod 2.3 Sdk遇到以下问题：

-= warning! =- A folder failed to be renamed or moved. On Windows this typically means that a program Is using that Folder (for example Windows Explorer or your anti-virus software.) Please momentarily deactivate your anti-virus software. Please also close any running programs that may be accessing the directory 'D:/Install/Programming/android-sdk-working-dir/android-sdk_r04-windows/android-sdk-windows/too!s'. When ready, press YES to try again.

最后在网上搜索得到正确的解决办法：

1. Copiedtools/toscrap/within the SDK directory
2. Ranandroid.batfrom thescrap/directory
3. Did the upgrade
4. Deleted thescrap/directory when done

下面的是网上的

I think they fixed this problem in the later version of the tools, but I ran into this a while back. Here's what I did:

1. Copied tools/ to scrap/ within the SDK directory
2. Ran android from the scrap/ directory
3. Did the upgrade
4. Deleted the scrap/ directory when done

I might have had to also change environment variables (e.g., PATH) that had been pointing to tools/ to point to scrap/ during this process -- I'm a bit fuzzy on the details