The others are in the C:\System Volume Information folder a part of the system restore function and are usually related to items you have at some point deleted (usually from a system folder) and system restore make a restore point for it in case you wish to reverse it.
If the archive really is corrupt the _restore points value is nullified so you could clear out your C:\System Volume Information folder and shave some valuable disk space if your system is running fine you can create a clean restore point and clear the rest.
Create a clean System Restore point:
Click Start, All Programs, Accessories, System tools, System Restore.
In the pop-up that appears fill in the radio button to Create a Restore Point
Click NEXT
Enter a useful name that you will remember if you need to find this again (Clean Restore Point)
Click CREATE
You now have a clean restore point, you should clear the old ones:
Click Start, All Programs, Accessories, System tools, Disk Clean Up
Click OK on the C: drive
Click the More Options tab
In the System Restore section click the Clean Up button
installer corrupted / archive corrupted means, that we were not able to unpack the files and look what’s under the primary layer = the file is scanned from outside only… the reasons could be 1) the archive is really corrupted someway (or) 2) it’s an unsupported version of installer… anyway, there’s no reason for panic…