Well, I opened the launcher and saw that a new update, 1.8, was released. I clicked on play to start the game and it started updating. I believe that it updated, but once Minecraft was loading, the launcher re-opened stating that the game crashed.
I expected Minecraft to update and function correctly, as it has with previous updates.
Instead, the game crashes, and now it is totally unplayable...
Steps to Reproduce:
1. Double click on Minecraft.exe file to start up the laucher.
2. Click on the Play button
3. Minecraft loads for a few seconds, then crashes, following with a report
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Incomplete without a crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]
). Please attach it so that we can diagnose your issue.

Hopefully this is what is needed to address the problem.

You try to use more memory than you have:
java.lang.OutOfMemoryError: Java heap space
..
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
You may increase the memory slightly in your Profile -> Options -> JVM Arguments -> Xmx512M <- Change that to something higher, but not more than 1024.
You have a 32 bit OS, you cannot have more than ~3 GB for everything (Windows + Applications)
Additionally remove your resource pack: Titanic HD.zip, then Minecraft may use some memory less.

If all that won't help, please use the Mojang Support Center.

How do I alter the memory? I never had problems with memory issues before 1.8. Is it because the new update requires more?
I had two resource packs, Life HD and Titanic HD. I kept only Life HD, but I would like both of them.
I set my profile to Version 1.7.10 and it enabled me to keep both Resource Packs. I am confused as to why this is and I would appreciate any extra assistance. Thanks.

Yes, 1.8 consumes more memory compared to 1.7.
A long term solution would be to install a 64 bit OS, then you have unlimited memory available.

Ah, thank you for telling me! Would you know how to install a 64 bit OS or where? Does it cost anything? I'm sorry for asking so many questions, but if I keep Version 1.7.10, would it lead to corruption or any other issues, like the much older versions?

This is a technical support issue; this site is for bug reports only. For technical support please use the Mojang Support Center.

Ok thanks!

Actually, this is a dupe of MC-70338, which will be fixed for a future version.
Description: Initializing game
java.lang.OutOfMemoryError: Java heap space
at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
at java.awt.image.Raster.createPackedRaster(Raster.java:455)
at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
at java.awt.image.BufferedImage.<init>(BufferedImage.java:326)
at cuj.a(SourceFile:407)
----
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
Description: Initializing game
java.lang.OutOfMemoryError: Java heap space
at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
at java.awt.image.Raster.createPackedRaster(Raster.java:455)
at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
at java.awt.image.BufferedImage.<init>(BufferedImage.java:326)
at cuj.a(SourceFile:407)
----
JVM Flags: 6 total; XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

Ah, didn't know it. Thanks.

No prob! 😉