Ask the network admin what settings to use.
Look at the Windows laptop's wireless connection properties for that SSID.
Try trial and error, but scientifically. Just changing a lot of options leads to frustration.
Start with a new wireless security profile, not one you've been playing with.
Configure with WPA PSK and WPA2 PSK enabled. Also enable both TKIP and AES. All four options allow the Mikrotik to sort it out if the AP is not using EAP. Is it a corporate or large campus network? If not, it's probably not EAP. Put the known pre-shared key in both WPA fields. Change nothing else.
Change the wireless interface mode to "station" or "station bridge" and to use this new security profile and the SSID of the AP you are trying to connect. Change nothing else.
If turning on the four PSK and encryption options doesn't work, it may be WEP. Configure a new security profile for WEP. Look at the wiki, wiki.mikrotik.com
, for how to do so. It's simple but I'm not taking the time to look up the exact options. Change the wireless interface to use the WEP security profile.
You'll have it running in 5 minutes *IF* the admin of the network is going to allow unknown devices to connect. If not, you're not going to make it work. Ask the admin what settings to use.
When you get it working, you can think about changing other options. One at a time. If it breaks, change it back. But, I wouldn't bother unless you have a specific issue. The defaults are defaults for a reason. They work most of the time.
If you've been changing a lot of things, you might first try reseting the mAP to default and using quickset to configure the wireless in CPE mode.