Langerd,
All web servers run on port 80 by default. So if you have IIS running that will have captured port 80 before you can start Apache.
If you want to run both you will have to stop IIS and potentially some other bits associated with IIS and SQL Server
These I know about, but there may be others that also use port 80.
1. IIS
2. Web Deploy 2.0
3. MS Sql Server Reporting service.
Stopping these should allow you to start the WAMP Stack Apache/MySQL etc.
If you want to move Apache to another port number i.e. 8080 tends to be the norm, you can then run IIS and Apache together ( no port conflict ). You will find WordPress works better if you install it using 8080 or which ever port you decide to change Apache to.
Also if you setup a 'virtual host' for the wordpress site to run in that also makes it easier to manage.
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-