I'm running Windows XP with SP3 installed. The computer is running extremely slow, taking about 5 minutes to completely boot up. Also, I am getting a random pop up asking me to install a "software update", but it doesn't say what the software is. It is definitely not a Windows update, I have no clue what it is.
I have run a complete scan with Malware Bytes and it came up with no infections found. I'm sure there is something going on, I'm just not sure how to trouble shoot it. Any help that anyone can offer is much appreciated.