Several things have broken on my dual OS mac book pro since I updated parallels 10 to build 29227. The "Use Windows 7 Look" feature under the view menu no longer works. The checkbox is there, but doesn't do anything. Windows 8.1 boots to the standard windows 8.1 look in any case. Also, a strange "flicker" has developed when I'm in windows 8.1. If you think of a horizontal line about 3/4 of an inch from the top of the screen, any time the mouse crosses this line, the screen flickers for a fraction of a second. Currently, a black and white apple logo with a status bar that seems to be half way to completion appears and immediately disappears, causing the flicker. I'm running the following: OS X Yosemite 10.10.5 MacBook Pro(retina, 15 inch, mid 2014) 2.2 ghz, core i7 graphics intel iris pro 1536 mb any ideas would be appreciated.
Hi FrankL1, Please follow the steps below to solve the issue: 1. Install Windows Updates using Windows Update Utility. 2. Reinstall Parallels Tools using this article
