# 4.7 Can't install **URL:** \ **Category:** Platform & Builds\ **Tags:** unreal-engine, crash, question\ **Created:** [February 26, 2015, 3:49am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179 "2015-02-26T03:49:52Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![TheWhale](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TheWhale](https://forums.unrealengine.com/u/TheWhale)\ **Post date:** [February 26, 2015, 3:49am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/1 "2015-02-26T03:49:52Z")
When I try to install 4.7 it downloads to about 25%, then my laptop bluescreens. I had no issues running 4.6. Is there something drastically different with 4.7? I’ve tried about 5 times now with the same result each time. I removed 4.7 and tried to redownload, and I completely uninstalled the launcher and reinstalled using the latest installer. Any help would be appreciated ---
**Author:** ![Jacky](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jacky/32/918690_2.png) [@Jacky](https://forums.unrealengine.com/u/Jacky)\ **Post date:** [February 26, 2015, 4:12am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/2 "2015-02-26T04:12:32Z")
I dont think this is caused by the engine or the launcher alone so can you please check the dump files using a program like this? [BlueScreenView - Free download and software reviews - CNET Download](http://download.cnet.com/BlueScreenView/3000-2094_4-10965136.html) The files it finds can tell you what is causing the BSOD(maybe GFX driver or hardware related.) ---
**Author:** ![TheWhale](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TheWhale](https://forums.unrealengine.com/u/TheWhale)\ **Post date:** [February 28, 2015, 2:31am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/3 "2015-02-28T02:31:28Z")
Hi Jacky, Thanks for the advice. I ran bluescreen view and it came up with ntoskrnl.exe as the cause. I ran tests on my RAM and hard drive and didn’t find any errors. I also tried updating my graphics drivers, then completely removed and reinstalled them. Still no luck. I’m going to try going back and installing 4.6. I never had issues until 4.7 ---
**Author:** ![TheWhale](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TheWhale](https://forums.unrealengine.com/u/TheWhale)\ **Post date:** [February 28, 2015, 3:41am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/4 "2015-02-28T03:41:09Z")
4.6.1 installs without a problem. Is there a substantial difference in the install? I was able to put 4.6.1 back on but 4.7 still gives me a bsod ---
**Author:** ![TheWhale](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TheWhale](https://forums.unrealengine.com/u/TheWhale)\ **Post date:** [March 1, 2015, 1:56am UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/5 "2015-03-01T01:56:58Z")
Ok, I managed to stop getting a BSOD. Now when I try to install, it goes to about 12% through verification then the launcher closes with no error message, everything disappears from my desktop and nothing will respond. I can’t even run the task manager. It says task manager can not be found when I try. Is there a log file I can check to see where things are getting stopped? ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [March 3, 2015, 8:08pm UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/6 "2015-03-03T20:08:38Z")
Hi TheWhale, Here are some troubleshooting steps to try and if nothing works you can generate a Debugging log. > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... Could you post the Debugging log here as well as your dxdiag (system specs)? ---
**Author:** ![TheWhale](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@TheWhale](https://forums.unrealengine.com/u/TheWhale)\ **Post date:** [March 7, 2015, 3:43pm UTC](https://forums.unrealengine.com/t/4-7-cant-install/308179/7 "2015-03-07T15:43:50Z")
Hello, Sorry for not responding. I finally fixed the problem. My hard drive was slowly dying. It would pass tests, but then I started getting more and more bluescreens. I replaced the drive and now I’m able to install without issues. Thanks to the folks who helped!