Can Not Install Applications in Windows 8

Today an student approached to me and asked about why he can not install an application on his computer. He told me that the computer says he has insufficient privilege, even though, he is using administrator account on this computer.

First I tried to right-click on this *.msi file to see its properties. I plan to select "Run this program as an administrator". Unfortunately this section is disabled.

After doing some Googles and trying suggestions, finally I found a suggestion which works. I'm not sure this is a good solution. Anyway it fixes the problem. Below is the solution.

1. Type secpol.msc in the Start Menu and press Enter.
2.  Double click on Local Policies then double click on Security Options.
3. Scroll to the bottom to this entry -
4. User Account Control: Run all administrators in Admin approval mode.
5. Double click that line.
6. Set it to disabled then press OK.
7. Reboot.

Basically from Windows Vista, there is a so-called  User Account Control (UAC) which limits the softwares to be able to installed. By disable the "User Account Control: Run all administrators in Admin approval mode", all the policies from UAC are disabled and now you become a real administrator without any limitation. If you know what you are doing on your computer, I recommend you to disable this on your computer to have full control.

Read PDF file in Kindle with Larger Text Size

The Kindle satisfies me when I'm reading a PRC-format book. However when it comes to PDF, the screen is too small to display the page. Even I rotate the Kindle, the text is still small to me. I notice that the margins of the PDF book is often large. So I think that why we don't make use of these margins and increase the text size. Below is my solution

1. You need to have a PDF virtual printer. You computer may  have "Adobe PDF" printer already. Otherwise I recommend PDFCreator.
2. Open your PDF book, print it and select your PDF virtual printer. In my case, I select PDFCreator. Then in "Page Sizing and Handling", select the "Custom Scale" and select the maximum percentage where your book is still displayed completely. For my example, I can select up to 150%. In other words, I just increase the text font size 1.5 times. On the right of the dialog, you can scroll the horizontal bar to check whether the page is not over the border of the page.

You can apply this technique not only Kindle but any device where the screen is not large. Make sure that the margin of the book you are reading is large enough. Otherwise the scaling up is not sufficient for you.