Windows way to Digital Learning……

How to Disable SSL 2.0 and SSL 3.0 on Exchange 2013 running on a Windows 2012


Open the registry and edit the values. If you don’t find the entries create the entries.


To disable SSL 2.0

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Client]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Server]

To disable SSL 3.0

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server]


To disable Ciphers:

Windows Registry Editor Version 5.00


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 128/128]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 40/128]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 56/128]

Alternate way to do this save above registry information keys as .reg files then execute on the system.

You can also download from here.

Before executing take the complete registry backup.  You need to restart the server.

Using the web site to perform a test against you site. You should see overall Rating A.



Now Microsoft SQL Server supports on Linux platforms.

I have tested on Redhat, CentOS and Oracle Linux.

Here we will see step by step guide to install SQL server on Linux.

Supported platforms


Supported version(s)


Red Hat Enterprise Linux


Get RHEL 7.3

SUSE Linux Enterprise Server

v12 SP2

Get SLES v12 SP2


16.04 and 16.10

Get Ubuntu 16.04

Docker Engine


Get Docker


  • You need at least 3.25 GB of memory to run SQL Server on Linux.


Install SQL Server

  • Login to root user using putty.

su - root

  • We will download and install SQL server repositories by using following commands.

# curl
> /etc/yum.repos.d/mssql-server.repo

# curl
> /etc/yum.repos.d/msprod.repo



  • Verify .repo files under /etc/yum.repos.d/ directory


  • To install SQL Server and MSSQL Tools package, run the following commands
# yum install -y mssql-server mssql-tools




  • Run the configuration script to accept license terms and set SA password
# cd /opt/mssql/bin/
# sudo ./mssql-config setup



  • To verify the mssql-server service is running
# systemctl status mssql-server


  • To open tcp-1433 port on system firewall in order to allow external clients to communicate with the database server.
# firewall-cmd --add-port=1433/tcp --permanent
# firewall-cmd --reload



  • Testing SQL Server
# cd /opt/mssql-tool/bin/
# ./sqlcmd -S srv01 -U SA



Upgrade SQL Server

  • To upgrade the mssql-server package on Linux, execute the following command
# yum update mssql-server

Uninstall SQL Server

  • To uninstall or remove the mssql-server package on Linux, execute the following command

# yum remove mssql-server  
(Remove or delete mssql-server package)

# rm -rf /var/opt/mssql/
(Remove or delete database files)

Windows Backup Error: Detailed error: ERROR – A Volume Shadow Copy Service operation error has occurred: (0x800423F0)



In an elevated open powershell: vssadmin list writers


Writer name: ‘FSCVSSWriter’

Writer Id: {68124191-7787-401a-8afa-12d9d7ccc6ee}

Writer Instance Id: {2865b83a-ebb5-4431-8164-a90ff79c59ca}

State: [7] Failed

Last error: Inconsistent shadow copy

Execute Services.msc (To open services windows) and disable or restart Microsoft Forefront Server Protection VSS.


Restart windows backup, now backup should complete.

How to check the Volume Shadow Copy Service (VSS) provider/writer status.

To check the VSS provider/writer status.
1. Open a command window. Click Start > Run and type CMD, and then click OK.
2. At the command prompt, type vssadmin list providers, and then press ENTER.
3. Confirm that the list shows Microsoft VSS providers listed as:

  • Microsoft Software Shadow Copy provider 1.0
4. Type vssadmin list writers at the command prompt, and then press ENTER.
5. Confirm that all the VSS writers are showing:
  • State: [1] Stable
  • No error

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Windows 10 Free Upgrade Available in 190 Countries Today

Microsoft offered as a free upgrade to genuine Windows 7, Windows 8.1 and Windows Phone 8.1 customers.

How to prepare your PC for Windows 10 ?

Windows 10 Upgrade Notification

Windows 10 Upgrade Notification

Windows 10 minimum system hardware requirements:

  • RAM: 1GB for 32-bit / 2GB for 64-bit
  • Storage: 16GB for 32-bit / 20GB for 64-bit
  • CPU: 1GHz or faster
  • Graphics: DirectX 9 capable video card

Most important thing to check is windows updates.

Download Link Here.


Make sure first you backup your personal data on OneDrive or locally on your external hard drive.

Windows 10

Windows 10

KB2990170 – MPIO Identifies Different Disks As The Same Disk



The code in Microsoft Windows that converts a hexadecimal device ID to an ASCII string may drop the most significant nibble in each byte if the byte is less than 0×10. (The most significant nibble is 0.) This causes different disks to be identified as the same disk by Multipath I/O (MPIO). At the very least, this may cause problems in mounting affected disks. And architecturally, this could cause data corruption.


When you apply this hotfix, the conversion algorithm is fixed. Disks that were masked by this issue before you installed the hotfix may be raw disks that still have to be partitioned and formatted for use. After you apply this hotfix, check in Disk Management or Diskpart for previously hidden disks.

A supported hotfix is available from Microsoft Support.

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