How to deregister in Kindle for PC or Mac?

Error: No key found. Most likely the correct PID has not been given.
DRM Removal Failed.

Video : How to deregister in Kindle for Pc

if you already download ebook in window in Kindle for pc, still fail to remove DRM, you can do as follow:

  1. Open Option window, click Deregister button to deregister, remove all license content, close it.

  2. Run Kindle for Pc or Kindle for Mac, register it again.
  3. Select ebook title in Kindle for Pc, right-click download item to re-download ebook.
  4. Run Kindle drm removal, try again.

if converter still not working, you do completely deregister as follow:

  1. Open Option window, click Deregister button to deregister, remove all license content, close it.

  2. goto amazon webpage “manage device”, delete that pc if it still show up.
  3. for windows, delete folder “c:\programdata\ebook converter” that is hidden folder.
  4. Run Kindle for Pc or Kindle for Mac, register it again.
  5. Select ebook title in Kindle for Pc, right-click download item to re-download ebook.
  6. Run Kindle drm removal, try again.

Thai E-book Provider Ookbee

The company is the country’s biggest e-bookstore, with a claimed 88 percent market share. Its founder, Natavudh “Moo” Pungcharoenpong, said the local market is still very new and young, but added that it has amassed 3 million users so far, and is adding new subscribers at a rate of 6,000 each day.

It seems the e-book market in Thailand has been quietly flourishing, at least according to a local provider of digital books and magazines, Ookbee.

The company raised a $2 million round from InTouch (formerly Shin Corporation), at a $8 million valuation last September. The current momentum, said Pungcharoenpong, will take the company into Singapore by April.

Last year, Ookbee delivered about 8 million books, free and paid, and raked in revenues of about “several million dollars” in the year, he said.

Its been seeding for its Singapore plans, as well. Last month, it secured a deal with Singapore Press Holdings (SPH), the largest magazine publisher in the country, to add about 100 of SPH’s magazine titles to Ookbee’s platform.

This builds on its recent expansion efforts in the region. Apart from its Thai headquarters, it has an office in Vietnam, and two months ago incorporated an office in Malaysia. Since its Malaysian launch, it managed to attract about 100,000 users reading 40 magazine titles and 5,000 e-books there.


How to read Vitalsource book in Chrome?

Vitalsource provide web access to user Bookshelf, user can read book in any browser without app installed, visit Vitalsource.com, click Bookshelf in page,

Login account and goto bookshelf page, click book title to read

Problem

if unauthenticated message show up, you should contact with Vitalsource to ask help, vitalsouce will resolve this problem.