Hello Barbara,
Thank you for posting your question on Microsoft community.
I appreciate you for providing details about the issue.
WMSDK is a file related to Windows media player. However, this file may also be a malware.
Booting issues may occur due to few startup programs or software conflicts. Wireless connection may not work due to corrupt wireless network drivers or settings.
I would suggest you to perform clean boot and check the issue with booting.
Refer this article:
How to perform a clean boot in Windows
https://support.microsoft.com/en-us/kb/929135
Clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update or when you run a program.
Note: After you have finished troubleshooting, follow these steps from section “How to reset the computer to start as usual after clean boot troubleshooting” to reset the computer to start as usual.
Please also run Microsoft safety scanner to check and remove any malware or virus in Windows.
Refer:
Microsoft safety scanner
http://www.microsoft.com/security/scanner/en-us/default.aspx
Note: Any data files that are infected may only be cleaned by deleting the file entirely, which means there is a potential for data loss.
For wireless issue, please refer this article and check.
Refer:
Wired and wireless network problems
http://windows.microsoft.com/en-US/windows/network-connection-problem-help#network-problems=windows-7&v1h=win81tab1&v2h=win7tab1&v3h=winvistatab1&v4h=winxptab1
I hope this information helps.
Please do let us know if you need any further assistance.
Thank you
