Some good advice here. Here's a couple more.
Delete cookies. In Internet Explorer go to tools/InternetOptions/general/
Unplug from the Internet and turn off your anti-virus. See if that solves the slowness. If so, change to the free Microsoft Security Essentials anti-virus.
Do the same as above with your software firewall. Microsoft's free Windows Defender firewall seems to work fine.
If your computer is old it may be that the cpu and hard drive just aren't fast enough for the newer software you may have installed recently. Fast, big hard drives are cheap but migrating to a new hard drive can be a pain.
First things to try are the defrag, clean-up, online free virus/trojan/malware tests, delete cookies and test anti-virus drain by turning it off (unplugged from Internet).
Delete cookies. In Internet Explorer go to tools/InternetOptions/general/
Unplug from the Internet and turn off your anti-virus. See if that solves the slowness. If so, change to the free Microsoft Security Essentials anti-virus.
Do the same as above with your software firewall. Microsoft's free Windows Defender firewall seems to work fine.
If your computer is old it may be that the cpu and hard drive just aren't fast enough for the newer software you may have installed recently. Fast, big hard drives are cheap but migrating to a new hard drive can be a pain.
First things to try are the defrag, clean-up, online free virus/trojan/malware tests, delete cookies and test anti-virus drain by turning it off (unplugged from Internet).