Just downloaded MC again after a year, launcher not working

Hi all!

I'm just trying to get back into Minecraft, but I can't get the game to launch. I figured someone here may have run into a similar issue.

When I click "launch", it goes to "launching..." and then does nothing. So far I have tried:
Uninstalling/reinstalling latest version of java
installing previous versions of java
uninstalling/reinstalling minecraft
deleting .minecraft folder contents
multiple computer restarts

Below is a copy of the launcher file:
20:38:38 INFO]: Launching game [20:38:38 INFO]: Unpacking natives to C:\Users\Matth\AppData\Roaming.minecraft\versions\1.8.9\1.8.9-natives-2085509567894 [20:38:38 ERROR]: Couldn't unpack natives! java.io.FileNotFoundException: C:\Users\Matth\AppData\Roaming.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-64.jar (The system cannot find the path specified) at java.util.zip.ZipFile.open(Native Method) ~[?:1.8.0_25] at java.util.zip.ZipFile.<init>(ZipFile.java:220) ~[?:1.8.0_25] at java.util.zip.ZipFile.<init>(ZipFile.java:150) ~[?:1.8.0_25] at java.util.zip.ZipFile.<init>(ZipFile.java:164) ~[?:1.8.0_25] at net.minecraft.launcher.game.MinecraftGameRunner.unpackNatives(MinecraftGameRunner.java:378) ~[launcher.jar:1.6.57] at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:111) [launcher.jar:1.6.57] at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:186) [launcher.jar:1.6.57] at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:1.6.57] at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:1.6.57] at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:1.6.57] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]