Do you compress your C drive?

Yes, anti-virus applications will have a hard time scanning it and will take forever also Windows itself will run a lot slower. Hard drives are fairly cheap these days, so why compress? Just get a bigger one or an other one if possible.

The only drives I would consider compressing would be storage drives that I don't access very often and even then only if I was desperate. Never do it to a system drive.

Well you asked and I answered with just 2 cons, I'm sure the experts will list many more. The only pro that I can see is that it will give you marginally more space on the drive, and it wont be very much. Better to get an external drive perhaps if you are that desperate for space.

Try it, you can always decompress it again if you find problems.

I tried it once years ago with my first PC and everything crawled, so gave up on that idea.

I'm just giving you the benefit of my experience.

Edit: Whatever you do don't try to stop the process once started. Let it complete.

any cons???? Sure, it slows the drive down as it has to compress everything.

When you compress anything, each file and folder has to be decompressed or 'unpacked' in order to be read by the system, or scanned by security software, that all takes time.

You can decompress it again....!!

You're welcome and good luck.