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Shefin
Shefin, Internet and Email Specialist
Category: Email
Satisfied Customers: 3522
Experience:  Working as Tech support specialist with a world famous computer manufacturer
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My Outlook data file has reached its maximum size. How do

Resolved Question:

My Outlook data file has reached its maximum size. How do I increase this data file?
Submitted: 12 months ago.
Category: Email
Expert:  Shefin replied 12 months ago.

Shefin :
Hello! Thank you for your question. I am Shefin and I look forward to helping you with your issue today.
Shefin :
Please let me know when you are ready.
Customer:

I am ready

Shefin :

May I know the Outlook version you are using? Is it 2010?

Customer:

where would I find that information?

Shefin :

Have you got this Outllook with Microsoft Office?

Customer:

Yes. It's 2010.

Shefin :

Okay.

Shefin :

The issue can be resolved in two ways.

Shefin :

1. By default, Personal Folders (.pst) and offline Outlook Data File (.ost) files are in Unicode format in Microsoft Outlook 2010 and Outlook 2013. The overall size of .pst and .ost files has a preconfigured limit of 50 GB.

Shefin :

The new Outlook file size limit of 50 GB can be increased or decreased by making changes to the Windows registry.

Shefin :

2. Create several new Personal Data Files (PST) files to manage your email messages.

Customer:

Are you asking me to choose?

Shefin :

Yes.

Shefin :

Which you would love to select?

Customer:

It seems to me that these choices are essentially the same. Is there an advantage to option 1 over option 2?

Shefin :

I do no think it will make much difference.

Shefin :

An I think you are comfortable with first one. Right?

Customer:

Yes. But is there a way to delete information in the file?

Shefin :

No.

Shefin :

For that, you have to delete the emails.

Customer:

In that case, I would like to increase the data file to 100G

Shefin :

Okay.

Shefin :

Please go to the link below.

Shefin :

Under More information, you will get the steps to follow, with pictures.

Customer:

should I do that now? does that end our chat?

Shefin :

If you need me to assist you step by step, please let me know.

Shefin :

No, I will wait till it gets resolved.

Customer:

OK. I will try.

Shefin :

Okay.

Shefin :

Have you done that?

Customer:

Shefin, sorry, I am very nervous making these changes. Apparently I have no limit registered and so I have to create one. Can you help?

Shefin :

Sure.

Shefin :

Get into Registry Editor.

Customer:

Yes. the one with the HKEY list, right?

Shefin :

Yes.

Shefin :

Double click to expand HKEY_CURRENT_USER.

Customer:

done

Shefin :

Expand Software, and then expand Policies.

Customer:

done

Shefin :

Expand Microsoft, and then expand Office.

Customer:

done

Shefin :

Expand 14.0

Customer:

done

Shefin :

Then expand Outlook.

Customer:

done

Shefin :

Click PST, and then right-click MaxFileSize in the right pane.

Customer:

I have two options here. "Security" and "New Key #1". New Key #1 is a tab I somehow renamed.

Shefin :

You have clicked PST. Right?

Shefin :

If you do not see PST, please let me know.

Customer:

I don't. On your screen are there two options? Security and PST?

Shefin :

That is alright.

Shefin :

Do you have clicked on Outlook?

Customer:

OK. Then I will rename "New Key #1" PST.

Shefin :

Right click Outlook, point to New, and then click Key.

Shefin :

Type PST, and then press ENTER.

Customer:

I don't see "Key". I see "copy key name". There is a tab that says "New". When I click on that I see "Key".

Shefin :

That is the same thing.

Shefin :

Type PST, and then press ENTER.

Customer:

OK. I have a file that says PST

Shefin :

Now you see PST under Outlook. Right?

Customer:

right

Shefin :

Right click PST, point to New, and then click DWORD value.

Customer:

done

Shefin :

Type MaxFileSize, and then press ENTER twice.

Customer:

I see a file called "New Value #1". Do you want me to rename this file "maxfile size"?

Shefin :

Yes.

Customer:

done. and now you want me to press enter twice?

Shefin :

Yes

Customer:

When I press enter once I get an edit Dword screen. When I press twice, the screen goes away.

Shefin :

Please get Edit Dword section.

Shefin :

In the Edit DWORD Value window, choose Decimal and type the value in the Value data box, and then click OK.
Note 1GB=1*1024*1024*1024byte; 1MB=1*1024*1024byte; 1KB=1*1024byte, the example below is for 1GB.

Customer:

done.

Customer:

so for 100 G what value do I enter?

Customer:

Shefin, is 100 G appropriate? Apparently I have used up 50 G. Is that true?

Shefin :

Yes.

Shefin :

We will try 100GB.

Shefin :

Try 100*1024*1024*1024byte

Customer:

Can you tell me exactly what numbers to enter in the value data box?

Customer:

OK

Customer:

the screen will not accept that many numbers.

Shefin :

Not like that.

Shefin :

I will get the result.

Shefin :

107374182400

Shefin :

Try the number 107374182400

Shefin :

In the Edit DWORD Value window, choose Decimal and type the value 107374182400 in the Value data box, and then click OK.

Customer:

It will only accept the first 10 numbers.

Shefin :

You have selected Decimal. Right?

Customer:

right

Shefin :

Please wait a minute.

Shefin :

Please use(NNN) NNN-NNNN/p>

Customer:

OK. I have entered that pressed "OK"

Shefin :

Then, again right click PST, point to New, and then click DWORD value.

Customer:

Done. I get another new file

Customer:

Called NewValue #1

Shefin :

Type WarnFileSize, and then press ENTER.

Shefin :

Name it as WarnFileSize, and then press ENTER.

Customer:

done

Shefin :

What is the value listed over there?

Customer:

the number under the column "data"?

Shefin :

Valuedata.

Customer:

There is no 'valuedata'. There is 'Name', 'Type' and 'Data. The number in the data column in the warnfilesize row is 0x0000000

Shefin :

Alright.

Shefin :

Create another Dword with name MaxLargeFileSize.

Customer:

done

Shefin :

Create another DWORD WarnLargeFileSize.

Customer:

done

Shefin :

We will change the MaxFileSize.

Shefin :

Please wait.

Shefin :

In Valudata type in 102400MB

Shefin :

Are you able to change the valuedata for MaxFileSize?

Customer:

It gave me an error message. do I include "MB" in the entry?

Shefin :

Are you not able to enter MB?

Customer:

Yes but it says the number is XXXXX large and wants to truncate the number - Yes/No

Shefin :

Press No.

Shefin :

And open value data for WarnLargeFileSize.

Customer:

done

Shefin :

Make it as 4090445042.

Customer:

done

Shefin :

Then open valuedata for MaxLargeFileSize

Customer:

done

Shefin :

Make it as 4294967295.

Customer:

done

Shefin :

Close registry editor and reopen Outlook.

Customer:

done.

Shefin :

Check if you are getting the message.

Customer:

No!

Shefin :

Great!

Shefin :

Check thoroughly and let me know if you have any issues.

Customer:

It looks good Shefin. Thank you.

Shefin :

Great!

Shefin :

I am glad to hear that!

Shefin :
If you are happy with the response or the issue gets resolved, please remember to rate my service once you have all the information you need. If you have any other questions, please ask me – I’ll be happy to respond.

Shefin, Internet and Email Specialist
Category: Email
Satisfied Customers: 3522
Experience: Working as Tech support specialist with a world famous computer manufacturer
Shefin and 5 other Email Specialists are ready to help you

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