The problem that beta2 cannot be installed after beta1 is uninstalled

My msdn cosmic version subscription has expired. This time, the download of Visual Studio. NET 2005 beta2 is depressing. In addition, I almost cannot install the 3.75g DVD ISO ~ It's really confusing!

The day before yesterday, I saw a post about Whidbey beta2 on the donkey and gave me the eMule seed. As an iron-hearted. NET technology, I can't wait to download it. At the beginning, it was very smooth, 50-60 K/s, And that version was a gb rar compressed package. Unfortunately, when downloading to 408.77m, there will be no seed. The next day will not be helpful, and the entire day will not be able to continue until the next day.

Last night, I saw a friend in the garden gave an FTP link to sSite, So I immediately stopped downloading eMule and started using the version of sSite under FTP, however, the sSite is actually 83 RAR scores per 50 m compressed packages, with a total size of 4 GB. Although the download speed is still 50 Mbit/s, it will take 20 hours !~ So I didn't shut down for the next night. As a result, 60 packets were left in the morning, and I went to work when I went on to download the package. It took 24 hours to download 83 packages when I came back.

So we started to decompress the hard disk. Although everyone's hard disk is big now, for those of us who stay online on the Internet every day, 4 + 4g space is really troublesome. Whidbey's beta1 was uninstalled last night, including framewrok 2.0 beta1 and J #. However, I mounted the ISO document on My elated mount:

Double-click the icon to start installation! When a warning occurs, the following warning window is displayed:

My 2005 beta1 was completely unmounted. What aircraft did TMD build at Microsoft ?! I am so angry. However, we can't do anything without it. It takes so much time to get such a large batch of things back, so we can't waste it. Besides, we have to pay a lot of electricity fees.

Simply put, this error is certainly the result that register has not been cleaned up. So we acquired regmon to monitor the registry and filtered setup. EXE to perform registry operations. There are hundreds of entries. If one entry is used, it will be crazy. So I started to search and got a "Whidbey". No result was found. I came back to 2005, but still didn't get @_@. This is a big game. Looking at the error window again, search for "visual" and finally found the only relevant register record (for example )!

Take a closer look, because it should have been deleted (for fear of using rename at the beginning of an error )!
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Installer \ userdata \ S-1-5-18 \ products \ a2ad560eed1efc148a5fce4fd089015b

Disable regmon, close the warning window, and click setup again. The installation page is displayed. Haha

// Although it was finally solved by the local method, the readme.htm file was read after the installation, and the solution was found in the error, and the system was dizzy again.