Enable FIPS Mode on SLES 15 and Verify the Boot State
Follow SUSE’s SP7 procedure to enable FIPS mode, reboot safely, verify the active policy, and check whether your compliance requirement calls for validated modules.
Recently, some Windows 10 users have encountered the problem of annoying audio loss. That is the error No Audio Output Device is Installed. The cause of this situation can come from many different factors, such as the bug of Windows 10 October 2018 update bug, unrecognized devices or missing audio drivers.
According to Microsoft, Intel audio driver is not connected correctly to devices via Windows Update. Incompatible audio driver may be one of the causes of this problem. Here are some solutions to help restore sound for computer.
Note : First of all, the most important thing to remember is to create a system restore time in Driver Booster's Rescue Center before following this guide. If any accident occurs, thanks to it, you can still restore the system to its original state (at the selected time).
Detailed pictures of the steps taken:

If the No Audio Output Device is Installed error appears on the computer, you should check hardware or external errors first.
1. Check the power source and volume level, try turning on the entire volume control. (Some speakers & apps have separate volume controls. You should check them all.)
2. Check audio equipment (eg audio, microphone, headset ...)
3. If using a desktop computer, don't forget to try the headphone jacks on the back of the computer tree.
If there are no problems with the hardware or external connection errors, try the next method.
However, the No Audio Output Device is Installed error is most likely coming from within. If Driver Booster is installed , you can automatically fix this error as follows:
Open Control Panel to see if the PC has Realtek HD Audio Manager .
Step 1 : Open the Control Panel (Press "Windows + R"> Type Control> Click "OK"> Select View by as Small icons on the right of the Control window ).
Step 2 : Click Realtek HD Audio Manager in Control Panel .
Step 3 : Click the gear icon at the top right of the window and select Option .
Step 4 : Click AC97 Front Panel , then check if it fixes the problem of audio loss.
Step 1 : Open Device Manager (Press "Windows + R"> Enter "devmgmt.msc"> Click "OK" ).
Step 2 : Open Sound, video and game controllers to view audio devices.
Step 3 : Right-click the relevant audio device and select Uninstall devices * .
Which device should I uninstall?
Tips:
While uninstalling, please remember to check “ Delete the Driver software for this device ”.
Reboot the system after uninstalling to see if anything goes wrong.
1. If the audio problem persists after restarting the PC, try updating the audio driver as follows:
Step 1 : Open Device Manager> Sound, video and game controllers.
Step 2 : Right-click the relevant audio device and select Update driver to see if the system is back to normal.
Step 3 : Click Search automatically for updated driver software to check for driver updates.
2. If there are no audio devices in Sound, video and game controllers :
Step 1: Find and open Other devices .
Step 2: Right-click on Unknown device and select Update driver to see if the system is back to normal.
3. If you have not used Driver Booster as a driver update, you can try it with 1 click to update the driver automatically.
Activate Driver Booster PRO version , you will get the following great deals:
After trial, if satisfied, you can buy Driver Booster at the company's website through this link .
If all else fails, you can turn to iObit for help:
Hope the article is helpful to you!
Follow SUSE’s SP7 procedure to enable FIPS mode, reboot safely, verify the active policy, and check whether your compliance requirement calls for validated modules.
Compare YaST and cryptsetup for a new encrypted SLES data volume, choose LUKS1 or LUKS2, and verify unlock and mount behavior safely.
Create, refine, and verify a least-privilege AppArmor profile on SLES 15 SP7, with a clear note on SLES 16’s SELinux default.
Set up RMT on SLES 15, mirror entitled repositories, and verify HTTPS registration and package access from a test client.
Connect SLES 15 to AD with YaST’s SSSD-based logon management, then verify directory lookup, domain login, and Kerberos tickets.
Set up the right Live Patching path for SLES 16.0 or 15 SP7, apply eligible kernel fixes, and confirm what is active without confusing it with a reboot-required kernel update.
Load a custom SLES 15 kernel module without disabling Secure Boot. Match the running kernel, sign the .ko file, enroll a MOK key, and verify loading.
SLES 15 SP5 can migrate online to SP6, but each node must reboot. Use a tested rolling upgrade or blue-green cutover to keep workloads reachable.
Use SUSE’s supported STIG profile to scan SLES 15, test remediation, review remaining findings, and retain assessment evidence.
Trace a failed Cockpit connection through DNS, port 9090, the systemd socket, firewalld, TLS, and login settings using current SUSE guidance.