Strange HJT errors

I've done all the "read and run me first" things, but I'm still having some problems running HJT. It's a very new computer (less than a month old), but my browser is already slowing down. Here are the error messages I recieved:

This one concerns me the most: HijackThis was denied write access to Host files. I manually edited C:\Windows\system32\etc\hosts, and removed the "::1 LocalHost" entry, but it wouldn't allow me to save it. It doesn't show up on the log, but on the scan it includes "O1-Hosts: ::1 localhost", and HJT told me to edit that out manually, but I couldn't

Second error message: "An unexpected error has occurred at procedure: modMain_CheckOther1Item()
Error #75 - Path/File access error

Please email me at merijn@spywareinfo.com, reporting the following:
* What you were trying to fix when the error occurred, if applicable
* How you can reproduce the error
* A complete HijackThis scan log, if possible

Windows version: Windows NT 6.00.1904
MSIE version: 7.0.6000.16512
HijackThis version: 1.99.1"

I'm wondering if "::1 localhost" could be a hijacker, or if it's a normal entry? If it's not normal, how could I go about removing it without write access? Attached is my HJT log, thanks for any help. If there is nothing abnormal, sorry for bothering with this but I've never had these HJT errors before.

 

First, do you have Administrator rights?

Second, you need to relocate and rename HijackThis. It should be ran from C:\Program Files\HJT and be renamed to "analyzethis.exe".

We also need a few more logs if you want us to assist you.

I will post our initial instructions as a reference.

 

Thanks for the response, I actually was able to remove the unwanted entry in my host file in safe mode. It appears the entry was some kind of hijacker. My browser is running much faster, and all the scans I've run have shown no signs of malware. I'll redo the scans and post the logs if I need any more help. Thanks!

 

By default your Windows HOSTS file should look like the below.