32-bit Windows Versions

Backup for Windows is not tested on 32-bit Windows platforms (Windows 7 32-bit, Windows Server 2008 32-bit), and user inquiries and issues related to 32-bit Windows versions are rejected.

The following 32-bit Windows limitations are the reason:

• 4GB RAM limit
• Unsupported TLS 1.2
• Absence of .NET Framework 4.5+.

However, you can try to use Backup for Windows on 32-bit Windows versions at your own risk.

If for some reason you cannot avoid using a 32-bit Windows operating system, consider the following recommendations:

• Decrease the memory limit
• Decrease thread count/chunk size.

Decrease Memory Limit

To decrease the memory limit, proceed as follows:

1. In the Tools menu, click Options.
2. Switch to the Memory Options tab.

3. Clear the Automatic check box (if selected), then lower the Maximum Memory Usage counter. For example, set 150 MB.
4. Clear the Unlimited check box (if selected), then lower the Maximum Disk Usage counter. For example, set 700 MB.
5. Once you are done, click OK.

Decrease Thread Count and Chunk Size

While processing backup data in memory, MSP360 (CloudBerry) Backup breaks files into chunks of a certain size.

To set new values for thread count and chunk size, proceed as follows:

1. In the Tools menu, click Options.
2. Switch to the Advanced tab.

3. In the Chunk Size counter, specify the lower value. For example, 2MB.
4. In the Thread Count counter, specify the lower value as well. For example, 4. This setting limits the number of simultaneous threads for one backup plan to the specified number.
5. Click OK or Apply.