• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Outlook PST File Problem

marcbkk

New Member
Joined
Feb 2, 2006
Messages
26 (0.00/day)
My Outlook PST file has now grown to nearly 4GB. I have deleted tons of stuff, emptied the deleted items mailbox, and I have done a Compact Now on the PST file a few times, but the file size never gets smaller. It just keeps growing in size instead. My guess is that it shouldn't even be 1GB at this point. Is there some easy thing I can do to rebuild the file using just the emails, contacts, and folders I want to keep so that the file runs smoothly and is optimized down to its proper size? Cheers. Marc
 

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
27,036 (3.71/day)
Processor Ryzen 7 5700X
Memory 48 GB
Video Card(s) RTX 4080
Storage 2x HDD RAID 1, 3x M.2 NVMe
Display(s) 30" 2560x1600 + 19" 1280x1024
Software Windows 10 64-bit
what I do is have 2 PST files .. one for archiving and one for daily use. twice a year i move old stuff to the archive file. 1.84 gb outlook.pst and 11 gb archive
 

marcbkk

New Member
Joined
Feb 2, 2006
Messages
26 (0.00/day)
Thanks, that sounds like a good way of doing things if you have that much stuff to keep and archive. I actually don't have that much stuff though and probably don't even need to archive. Would just like to get my PST file down to its correct size. It seems it might be erroring or corrupted in some way since it doesn't reduce in size even after deleting and compacting. Is there a way I can fix this file or rebuild a new one from it? Cheers.
 

marcbkk

New Member
Joined
Feb 2, 2006
Messages
26 (0.00/day)
Cheers for that. I ran Scanpst.exe and it found some errors and fixed them, but unfortunately the overly large file size stayed the same. :ohwell:
 
Joined
Jul 20, 2008
Messages
4,016 (0.70/day)
Location
Ohio
System Name Desktop|| Virtual Host 0
Processor Intel Core i5 2500-K @ 4.3ghz || 2x Xeon L5630 (total 8 cores, 16 threads)
Motherboard ASUS P8Z68-V || Dell PowerEdge R710 (Intel 5520 chipset)
Cooling Corsair Hydro H100 || Stock hotplug fans and passive heatsinks
Memory 4x4gb Corsair Vengeance DDR3 1600 || 12x4gb Hynix DDR3 1066 FB-DIMMs
Video Card(s) MSI GTX 760 Gaming Twin Frozr 4GB OC || Don't know, don't care
Storage Hitachi 7K3000 2TB || 6x300gb 15k rpm SAS internal hotswap, 12x3tb Seagate NAS drives in enclosure
Display(s) ViewSonic VA2349S || remote iDRAC KVM console
Case Antec P280 || Dell PowerEdge R710
Audio Device(s) HRT MusicStreamer II+ and Focusrite Scarlett 18i8 || Don't know, don't care
Power Supply SeaSonic X650 Gold || 2x870w hot-swappable
Mouse Logitech G500 || remote iDRAC KVM console
Keyboard Logitech G510 || remote iDRAC KVM console
Software Win7 Ultimate x64 || VMware vSphere 6.0 with vCenter Server 6.0
Benchmark Scores Over 9000 on the scouter
Do you have a lot of attachments in your e-mails? From my understanding, that is a common cause for the PST getting larger.
 
Joined
Jan 12, 2009
Messages
1,241 (0.22/day)
Location
Connecticut
System Name Corsair 900D
Processor FX8350
Motherboard Asus Crosshair V
Cooling Corsair H110I
Memory 16GB Corsair Vengeance
Video Card(s) Asus GTX1080
Storage 2x 500GB 1x 1TB WD Green
Display(s) Acer 24" 1080p / HP 27" 1080p LED
Case Corsair 900D
Audio Device(s) Sound Blaster X-Fi (Built in/Mobo) - Xonar Sound Card
Power Supply Enermax 1020Watt
Mouse Logitech Something Whatever
Keyboard Logtich G910
Software Windows 10
Outlook .PST files are maxed at 2GB's anything over that and they become corrupted. You can try the scanpst.exe from above. Also this might help you.

http://support.microsoft.com/kb/296088
 

marcbkk

New Member
Joined
Feb 2, 2006
Messages
26 (0.00/day)
Thanks again everyone. I just did an export on the troubled PST file to create a new PST file from it and the file size went from 3.9GB down to 850MB. Then I installed the new PST file into Outlook that I just created and removed the old PST file from Outlook and all seems to be working fine so far. I think I am good now, but I will give it some time just to make sure there are no problems before I delete the old file. Thanks again.
 
Joined
Jul 20, 2008
Messages
4,016 (0.70/day)
Location
Ohio
System Name Desktop|| Virtual Host 0
Processor Intel Core i5 2500-K @ 4.3ghz || 2x Xeon L5630 (total 8 cores, 16 threads)
Motherboard ASUS P8Z68-V || Dell PowerEdge R710 (Intel 5520 chipset)
Cooling Corsair Hydro H100 || Stock hotplug fans and passive heatsinks
Memory 4x4gb Corsair Vengeance DDR3 1600 || 12x4gb Hynix DDR3 1066 FB-DIMMs
Video Card(s) MSI GTX 760 Gaming Twin Frozr 4GB OC || Don't know, don't care
Storage Hitachi 7K3000 2TB || 6x300gb 15k rpm SAS internal hotswap, 12x3tb Seagate NAS drives in enclosure
Display(s) ViewSonic VA2349S || remote iDRAC KVM console
Case Antec P280 || Dell PowerEdge R710
Audio Device(s) HRT MusicStreamer II+ and Focusrite Scarlett 18i8 || Don't know, don't care
Power Supply SeaSonic X650 Gold || 2x870w hot-swappable
Mouse Logitech G500 || remote iDRAC KVM console
Keyboard Logitech G510 || remote iDRAC KVM console
Software Win7 Ultimate x64 || VMware vSphere 6.0 with vCenter Server 6.0
Benchmark Scores Over 9000 on the scouter
Good to hear it's OK now; I'll remember that solution for future reference.
Outlook .PST files are maxed at 2GB's anything over that and they become corrupted. You can try the scanpst.exe from above. Also this might help you.

http://support.microsoft.com/kb/296088
I thought that limit was raised to like 18gb in Outlook 2003 or something ridiculous like that?

edit: MS KB article discussing pst and ost size limits. According to that, 2003 and 2007 have a default limit of 20gb and 2010 is 50gb. Notice those are default, they can be changed in the registry.
 
Joined
Jan 12, 2009
Messages
1,241 (0.22/day)
Location
Connecticut
System Name Corsair 900D
Processor FX8350
Motherboard Asus Crosshair V
Cooling Corsair H110I
Memory 16GB Corsair Vengeance
Video Card(s) Asus GTX1080
Storage 2x 500GB 1x 1TB WD Green
Display(s) Acer 24" 1080p / HP 27" 1080p LED
Case Corsair 900D
Audio Device(s) Sound Blaster X-Fi (Built in/Mobo) - Xonar Sound Card
Power Supply Enermax 1020Watt
Mouse Logitech Something Whatever
Keyboard Logtich G910
Software Windows 10
Good to hear it's OK now; I'll remember that solution for future reference.

I thought that limit was raised to like 18gb in Outlook 2003 or something ridiculous like that?

yeah it was changed to unicode 20gb limit in 2003/2007 office. ANSI is limited to 2gb.

I didn't see any version of office so assumed he hit a limit somewhere. :ohwell:
 

newtekie1

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
28,472 (4.23/day)
Location
Indiana, USA
Processor Intel Core i7 10850K@5.2GHz
Motherboard AsRock Z470 Taichi
Cooling Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory 32GB DDR4-3600
Video Card(s) RTX 2070 Super
Storage 500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s) Acer Nitro VG280K 4K 28"
Case Fractal Design Define S
Audio Device(s) Onboard is good enough for me
Power Supply eVGA SuperNOVA 1000w G3
Software Windows 10 Pro x64
Thanks again everyone. I just did an export on the troubled PST file to create a new PST file from it and the file size went from 3.9GB down to 850MB. Then I installed the new PST file into Outlook that I just created and removed the old PST file from Outlook and all seems to be working fine so far. I think I am good now, but I will give it some time just to make sure there are no problems before I delete the old file. Thanks again.

That is exactly what I was going to suggest. Export everything to another PST file, delete the old(or rather move it out of the default folder) and replace it with the new PST file that you exported.
 

marcbkk

New Member
Joined
Feb 2, 2006
Messages
26 (0.00/day)
Yes, thanks, it seems to be working well now. Also, I did a compact on the new PST file I created and it dropped it down another 50MB or so in file size. Nice to see some things can be so simple :)
 
Top