has blocked this Publisher from running software on your computer, you must unblock

Try the following steps to set the publisher of Flash Player Adobe company as a trusted publisher. 
 
1, open Internet Explorer.

2, on the Tools menu, click Internet Options.
 
3, on the Content tab, click Publisher or Publisher.
 
4. On the Untrusted Publishers tab, click the publisher you want to unblock (for example, you select "Adobe systerms incoperated"), and then click Delete.
 
 
 then run the installation software, OK, the Run button appears.

related help:
 
====================
 
Why the distributor was blocked. The
 
 
 
person who used or managed the computer explicitly chose to block the publisher. To open or run the file, you need to unblock the publisher. You should try to open the file only if you trust the publisher and you are sure that the file is safe.
 
blocking publishers differs from blocking or restricting web sites. Blocking publishers does not restrict you to a Web site that distributes files from that publisher, but you can open these files only after you unblock the publisher first. Any publisher you block will be blocked on all sites, not just the site where you are blocking it

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This article address: http://blog.csdn.net/aerchi/article/details/7937853